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DTSTART;TZID=America/Los_Angeles:20260518T143000
DTEND;TZID=America/Los_Angeles:20260518T152000
DTSTAMP:20260525T073609
CREATED:20251212T223217Z
LAST-MODIFIED:20260518T091526Z
UID:7836-1779114600-1779117600@www.quantumx.washington.edu
SUMMARY:MSE Seminar: Kayla Sprenger
DESCRIPTION:Event interval: Single day eventAccessibility Contact: Matthew Yankowitz\, myank@uw.eduEvent Types: Lectures/Seminars \nTitle: Engineering Polymer Interfaces via Multiscale Modeling Across Sustainability and Health. \nAbstract: Plastic waste\, materials sustainability\, and biomaterial performance represent interconnected challenges that require molecular-level understanding across a wide range of polymer systems. In the Rationally Designed Immunotherapeutics and Interfaces (RDI) Lab\, we leverage multiscale computational approaches to interrogate and engineer polymer interfaces spanning applications across sustainability and health. Central to our work is the idea that molecular interactions at polymer interfaces govern macroscopic properties including degradation behavior\, catalytic reactivity\, material performance\, and biological response. This seminar will highlight how advanced in silico approaches\, including reactive molecular dynamics simulations and enhanced sampling methods\, can provide molecular-scale insight into complex polymer systems relevant to the plastics circular economy and next-generation biomaterials. First\, I will discuss our work investigating polymer/metal oxide interfaces relevant to catalytic plastics upcycling and hydrogenolysis\, with the goal of understanding how interfacial chemistry influences degradation pathways and catalytic reactivity for mixed plastic waste streams. I will then describe our efforts to investigate polymer/enzyme interfaces governing PET biodegradation\, including computational identification of mutations that may improve PET-degrading enzyme activity and stability. \nBeyond improving strategies for degrading existing plastics\, our lab is also focused on designing sustainable materials from the ground up. Accordingly\, a major focus of the talk will center on our investigations of biomatter-derived bioplastics composed of biologically derived components including proteins\, carbohydrates\, lipids\, and polymers. By integrating molecular simulations with collaborators’ experimental thermomechanical processing and spectroscopy data\, we seek to uncover how molecular composition and intermolecular interactions influence the emergent structure and properties of these sustainable materials. Finally\, I will briefly discuss how many of the same computational frameworks developed for sustainable polymer systems can be extended to biomedical polymer interfaces\, including polymer-protein bioconjugates and polymer-based coatings designed to stabilize proteins and mitigate inflammatory foreign body responses to implanted biomaterials. Collectively\, these studies showcase how multiscale modeling can accelerate rational engineering of polymer interfaces across applications spanning plastics circularity\, sustainable materials\, and health. \nBio: Kayla G. Sprenger\, Ph.D.\, is an Assistant Professor in the Chemical and Biological Engineering Department at the University of Colorado Boulder. Dr. Sprenger received her Ph.D. in Chemical Engineering in 2017 from the University of Washington-Seattle with Dr. Jim Pfaendtner. Her Ph.D. was focused on the development and use of molecular simulation tools to study the structure and function of biomolecules at interfaces. She completed her postdoctoral studies in 2020 at MIT in the Institute for Medical Engineering & Science with Dr. Arup Chakraborty\, developing agent-based models of stochastic biological processes. Her lab at CU Boulder is now focused on utilizing multiscale computational approaches to understand and engineer interfaces for broad applications ranging from sustainable energy to health and medicine.
URL:https://www.quantumx.washington.edu/calendar/mse-seminar-robert-hickey/
CATEGORIES:Materials Science & Engineering
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260511T143000
DTEND;TZID=America/Los_Angeles:20260511T152000
DTSTAMP:20260525T073609
CREATED:20251212T232759Z
LAST-MODIFIED:20260511T090032Z
UID:7835-1778509800-1778512800@www.quantumx.washington.edu
SUMMARY:MSE Seminar: Mit Naik
DESCRIPTION:Event interval: Single day eventCampus room: SIG 134Accessibility Contact: Matthew Yankowitz\, myank@uw.eduEvent Types: Lectures/Seminars \nTitle: Emergence of Moiré Excitons and Taco-Shaped Flat Bands in Twisted Transition Metal Dichalcogenides. \nAbstract: Moiré patterns of 2D van der Waals materials have proven to be an ideal platform to host unusual correlated electronic phases\, emerging magnetism\, and novel exciton physics. In this talk\, I will present state-of-the-art first-principles calculations revealing how structural reconstruction\, flat electronic bands\, and moiré localization collectively shape excitonic states in twisted transition metal dichalcogenide (TMD) heterostructures. These calculations uncover distinct excitonic states with different spatial and optical characteristics and provide microscopic design principles for tailoring excitonic properties in moiré materials. Our predictions have been validated through close collaborations with experiments including reflection contrast spectroscopy\, electron energy-loss spectroscopy\, and scanning tunneling spectroscopy.  Moiré physics in large twist angles have received relatively less attention since the K valley states are largely decoupled between layers at such angles and the superlattice exhibits minimal structural reconstruction. I will discuss our surprising discovery of a new kind of valley system in bilayer transition metal dichalcogenides twisted to a large magic angle\, where interlayer hybridization between like-spin Λ valleys generates extended\, spin-polarized flat bands with quasi-one-dimensional dispersion. These “taco"-shaped valleys form six anisotropic channels that interconnect across the moiré Brillouin zone\, exhibiting alternating spin polarization under sixfold rotation\, reminiscent of altermagnetic textures. The flat band shows a power-law divergent density of states due to its quasi-one-dimensional character\, enhancing the potential for correlated phases. A direct consequence of this flat band observed recently is the emergence of phonon-assisted intervalley absorption peaks in reflection contrast spectra measurements. \nBio: Mit Naik is an assistant professor in the physics department at the University of Texas at Austin working in the field of computational condensed matter physics and material science. His research particularly targets electronic and optical excitations in nanostructured quantum materials studied using first-principles electronic-structure calculations. He obtained his Ph.D. in physics at the Indian Institute of Science\, Bangalore\, and held a postdoctoral position at the University of California\, Berkeley.
URL:https://www.quantumx.washington.edu/calendar/mse-seminar-tbd-7/
CATEGORIES:Materials Science & Engineering
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260504T143000
DTEND;TZID=America/Los_Angeles:20260504T152000
DTSTAMP:20260525T073609
CREATED:20251212T232748Z
LAST-MODIFIED:20260504T083025Z
UID:7834-1777905000-1777908000@www.quantumx.washington.edu
SUMMARY:MSE Seminar: Chenhao Jin
DESCRIPTION:Event interval: Single day eventAccessibility Contact: Matthew Yankowitz\, myank@uw.eduEvent Types: Lectures/Seminars \nTitle: Probing emergent excitations in semiconducting moiré superlattices \nAbstract: Semiconducting moiré superlattices recently emerged as an attractive platform for engineering new quantum phenomena. While a plethora of intriguing ground states are reported\, their dynamics and excitations remain largely unexplored\, which govern their responses to intrinsic fluctuations and external driving. In this talk\, I will discuss our recent efforts to investigate excitations in semiconducting moiré superlattices. Using an ultrafast wide-field imaging technique\, we record their complete space-time evolution\, such as space-and-time-resolved transport. This allows us to simultaneously capture and separate multiple collective excitations\, identify their nature and distinguish them from single-particle ones\, which have been challenging from steady-state measurements. These emergent excitations govern dynamic responses of the system and play a central role in phase stability and transition. Our results highlight new insights encoded in collective excitations and open avenues for studying and engineering correlated quantum systems through nonequilibrium approaches. \nBio: Dr. Chenhao Jin is an assistant professor of Physics at UC Santa Barbara. He received a B.S. in Physics from Peking university and PhD in Physics from UC Berkeley. He was a Kavli fellow at Cornell University between before moving to UC Santa Barbara in 2021. Dr. Jin’s research focuses on developing new optical spectroscopy and imaging techniques to "watch" quantum phenomena in space and time; and has made seminal contributions to optical studies of van der Waals materials and moiré superlattices. Dr. Jin has received multiple awards\, including AFOSR YIP award\, NSF CAREER award\, Blavatnik Regional Awards for Young Scientists\, and Sloan Research Fellowship.
URL:https://www.quantumx.washington.edu/calendar/mse-seminar-chenhao-jin/
CATEGORIES:Materials Science & Engineering
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260420T143000
DTEND;TZID=America/Los_Angeles:20260420T152000
DTSTAMP:20260525T073609
CREATED:20251212T232734Z
LAST-MODIFIED:20260419T230039Z
UID:7833-1776695400-1776698400@www.quantumx.washington.edu
SUMMARY:MSE Seminar: Timothy Hebrink
DESCRIPTION:Event interval: Single day eventAccessibility Contact: Matthew Yankowitz\, myank@uw.eduEvent Types: Lectures/Seminars \nTitle: Light and Energy Management Films for Improving the Energy Efficiency of Buildings\, Vehicles\, and Electronics. \nAbstract: Light and energy management play essential roles in modern life\, influencing electronic displays\, energy-efficient buildings and vehicles\, and renewable energy systems. At 3M\, significant advancements in optical film technologies-such as multilayer optical films and micro-structured films-have enabled new approaches to control\, direct\, and utilize light more effectively. This talk will introduce the fundamental science underlying these optical film technologies and highlight their applications\, including brightness enhancement in LCD displays\, solar heat rejection in architectural and automotive glazing\, and radiative cooling solutions for buildings and vehicles. These light and energy management films improve the energy efficiency of buildings\, vehicles\, and electronic applications\, and thus reduce electricity consumption or improve human comfort and safety. In alignment with 3M’s commitment to “Science Applied to Life\,” the presentation will demonstrate how scientific innovation translates into practical solutions with meaningful impact across industries and everyday experiences. \nBio: Tim Hebrink\, Corporate Scientist in 3M Corporate Research Process Lab\, graduated from the University of Minnesota with a BS in Chemical Engineering\, and has 41 years of polymer product development experience at 3M Company. His expertise\, and innovations\, in polymer properties and polymer processing has earned him 85 issued US patents and >60 pending patent applications covering novel optical polymers\, optical film designs\, polymer films with improved properties\, and novel applications of polymer films. Polymer films produced by his inventions have enabled significant 3M polymeric film sales resulting in 6 Golden Step Awards for individual products achieving sales greater than $20million/year. While at 3M Company\, Tim’s technical contributions to 3M have been recognized with 11 Circle of Technical Excellence awards. He has collaborated with many Universities and National Laboratories resulting in 12 research publications including a book chapter on Durable Polymer Films. He is passionate about energy efficiency and sustainability.
URL:https://www.quantumx.washington.edu/calendar/mse-seminar-timothy-hebrink/
CATEGORIES:Materials Science & Engineering
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260413T143000
DTEND;TZID=America/Los_Angeles:20260413T153000
DTSTAMP:20260525T073609
CREATED:20251212T232721Z
LAST-MODIFIED:20260412T230044Z
UID:7832-1776090600-1776094200@www.quantumx.washington.edu
SUMMARY:MSE Seminar: Jun Xiao
DESCRIPTION:Event interval: Single day eventAccessibility Contact: Matthew Yankowitz\, myank@uw.eduEvent Types: Lectures/Seminars \nTitle: Jun Xiao\, University of Wisconsin-Madison will present "Strong THz electrodynamics and high-performance THz optoelectronics based on emergent 2D materials." \nAbstract: Terahertz (THz) sensing and imaging are critical in both quantum information technology and biomedical sensing because THz frequencies (0.1-10 THz) resonate with key low-energy information carriers (e.g.\, coherent phonons and magnons) in quantum materials and molecular vibrations in biological matter (e.g.\, skin tumor tissues and blood cells). In addition\, materials with THz response are essential building blocks for the next generation telecommunication technology. However\, the widespread use of THz technology has long been hindered by a lack of materials with strong THz light-matter interactions for high-performance devices. \nIn this talk\, I will present our recent advances in two-dimensional (2D) quantum materials to overcome these limitations by leveraging their unique topological properties and exploiting the resulting strong light-matter interactions. One remarkable example is the recently discovered nonlinear Hall effect (NHE) in 2D topological semimetals\, mediated by their diverging quantum geometrical properties . In the first part of the talk\, I will report how we use this new notion to demonstrate the long-sought THz sensing metrics . Specifically\, we have experimentally studied the unique interplay among the quantum geometrical properties\, gate-tunable electron correlation and THz electrodynamics in atomically thin topological semimetals TaIrTe4. Building upon the nonlinear Hall effect as a new mechanism for THz rectification\, we have observed a large zero-bias responsivity (~ 0.3 A/W)\, ultralow NEP (~ pW/Hz1/2)\, broadband THz response (0.1 to 10 THz) and ultrafast intrinsic speed (~ ps) at room temperature. The device performance can be further enhanced by introducing gate-tunable electron correlations. Thanks to the new topological physics and strong electron correlation\, the demonstrated device metrics show tremendous advantages over the attainable THz detectors based on other 2D materials and conventional technology. Beyond light probing\, the rich interplay physics in this platform also allows using light to induce more exotic order. If time permits\, I may present our ongoing efforts along this way.Detecting terahertz waves is only one half of the equation\, in the second half of the talk\, I will introduce our report of colossal THz emission from a van der Waals (vdW) ferroelectric semiconductor NbOI2 . Using THz emission spectroscopy\, we observe a THz generation efficiency that is an order of magnitude higher than that of ZnTe. We uncover the underlying generation mechanisms tied to its substantial ferroelectric polarization by investigating the dependence of THz emission on excitation wavelength\, incident polarization and fluence. Leveraging the long-lived coherent ferron-mediated THz emission\, we further demonstrate the ultrafast coherent amplification and annihilation of the THz emission and associated coherent ferron oscillations by using an ultrafast double-pump scheme. \nBio: Dr. Xiao is an assistant professor in the Department of Materials Science and Engineering at the University of Wisconsin-Madison from August 2021. Prior to joining Madison\, Dr. Jun Xiao worked as a postdoctoral scholar with Prof. Aaron Lindenberg and Prof. Tony Heinz at Stanford University and SLAC National Accelerator Laboratory. He earned his Ph.D. in applied science and technology from UC Berkeley (2018) under Prof. Xiang Zhang’s supervision. He received his bachelor’s degree in physics from Nanjing University (2012). His research experience and interests focus on structure-property relationships and light-matter interactions in 2D quantum materials for robust quantum computing\, efficient energy conservation and high-performance THz optoelectronics. His findings are published in many high-impact journals including Nature\, Science\, Nature Physics\, Nature Nanotechnology\, Nature Electronics and Physical Review Letters. He is the recipient of the 2023 NSF CAREER Award. 
URL:https://www.quantumx.washington.edu/calendar/mse-seminar-jun-xiao/
CATEGORIES:Materials Science & Engineering
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260406T143000
DTEND;TZID=America/Los_Angeles:20260406T153000
DTSTAMP:20260525T073609
CREATED:20251209T191014Z
LAST-MODIFIED:20260405T223139Z
UID:7729-1775485800-1775489400@www.quantumx.washington.edu
SUMMARY:MSE Seminar: Fang Liu
DESCRIPTION:Event interval: Single day eventAccessibility Contact: Matthew Yankowitz\, myank@uw.eduEvent Types: Lectures/Seminars \nTitle: Fang Liu\, Michigan Technological University\, will present "Large scale production of artificial two-dimensional superlattices." \nAbstract: Two-dimensional (2D) materials and their engineered lattices offer exciting opportunities for next-generation electronic\, optoelectronic\, and electrochemical devices. Yet\, studies of high-quality heterostructures have been largely constrained to microscopic flakes. Here\, we present scalable\, controllable top-down methods that transform a wide range of van der Waals (vdW) single crystals into twisted moiré superlattices with high yield\, exceptional uniformity\, and macroscopic dimensions from millimeters to centimeters. Access to such large-area structures has enabled new discoveries\, including ultrafast thermal exchange at bilayer interfaces\, rapid photoinduced tuning of moiré patterns\, and markedly reduced Debye temperatures in deformed monolayers compared to their isolated counterparts. Furthermore\, by patterning 1D features—such as nanoribbon arrays and nanowrinkles—on 2D monolayers\, we uncover unique electronic and thermodynamic behaviors absent in pristine layers. These advances in large-scale 2D artificial structures pave the way toward mass production and practical deployment of twistronic devices. \nBio: Dr. Fang Liu is an Assistant Professor of Chemistry at Stanford University. She started her group in 2020. Her research focuses on the light-induced dynamics of solid low dimensional materials and construction of low dimensional artificial structures. Prior to her current position\, she was a postdoctoral fellow in the group of Prof. Xiaoyang Zhu at Columbia University. Prior to working in Columbia\, she worked under the direction of Prof. Marsha I Lester at University of Pennsylvania. She received her Ph.D. in 2015 and worked as a postdoc in the same group in 2016. She received her B.S. in chemistry at Peking University in 2010.
URL:https://www.quantumx.washington.edu/calendar/mse-seminar-tbd-6/
CATEGORIES:Materials Science & Engineering
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260330T143000
DTEND;TZID=America/Los_Angeles:20260330T153000
DTSTAMP:20260525T073609
CREATED:20251209T190836Z
LAST-MODIFIED:20260330T221530Z
UID:7728-1774881000-1774884600@www.quantumx.washington.edu
SUMMARY:MSE Seminar: Yun Hang Hu
DESCRIPTION:Event interval: Single day eventAccessibility Contact: Matthew Yankowitz\, myank@uw.eduEvent Types: Lectures/SeminarsTitle: TBDAbstract: TBDBio: TBD
URL:https://www.quantumx.washington.edu/calendar/mse-seminar-yun-hang-hu/
CATEGORIES:Materials Science & Engineering
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260309T143000
DTEND;TZID=America/Los_Angeles:20260309T153000
DTSTAMP:20260525T073609
CREATED:20251120T223945Z
LAST-MODIFIED:20260309T210026Z
UID:7260-1773066600-1773070200@www.quantumx.washington.edu
SUMMARY:MSE Seminar: Shuolong Yang
DESCRIPTION:Event interval: Single day eventCampus location: Bagley Hall (BAG)Campus room: 154Accessibility Contact: Matthew Yankowitz\, myank@uw.eduEvent Types: Lectures/Seminars \nTitle: Engineering Topological Quantum Matter in Space and Time. \nAbstract: Topology has emerged as a unifying principle in modern condensed matter physics and materials science\, enabling quantum phases that are remarkably robust yet exquisitely sensitive to their underlying environment. While traditional approaches to topological materials discovery rely on chemistry\, the rise of moiré quantum materials suggests a different strategy: engineering topology by tailoring the physical environment. \n In this talk I will highlight my group’s recent efforts to control scalable topological quantum matter using two fundamental physical knobs – space and time. We constructed a unique testbed to manipulate and probe materials at femtosecond time scale and atomic-layer spatial scale . In space\, by precision control of dimensionality\, we demonstrate 2-quintuple-layer Bi2Te3 and MnBi2Te4/Bi2Te3 as robust 2D topological insulators with an inverted gap greater than 100 meV\, suggesting a potential quantum spin Hall effect operating at ambient temperature . In time\, we show that topological electronic states carry intrinsic layer-dependent vibrational fingerprints. By “listening” to these frequencies as the states couple to coherent phonons\, we develop a quantum stethoscope capable of resolving long-standing puzzles in magnetic topological insulators\, including the elusive broken-symmetry energy gap . In combined space-time co-engineering\, I will present our latest results integrating photonic crystal cavities with ultrathin topological insulators to realize cavity-driven Floquet engineering . This platform represents a new class of physical-environment control experiments\, where the ground states of topological materials are reshaped simultaneously in space and time. Together\, these examples illustrate a paradigm in which topological phenomena can be designed and manipulated by engineering the physical environment\, and potentially stabilized near ambient conditions – opening pathways toward scalable quantum materials and devices. \nReferences C. Yan et al. Rev. Sci. Instrum. 92\, 113907 (2021) W. Lee et al. In revision (2026) W. Lee et al. Nature Phys. 19\, 950 (2023) K. D. Nguyen et al. Science Advances 10\, eadn5696 (2024) Y. Bai et al. In preparation \nBio: Dr. Shuolong Yang is an Assistant Professor of molecular engineering at the University of Chicago. He pioneered the approach to combine atomic-level materials synthesis with time-domain photoemission spectroscopy. He is recognized by an NSF CAREER award\, a DOE Early Career award\, and a NASA Early Career Faculty award. He is a Moore Foundation Investigator and named a 2025 Emerging Investigator by Nanoscale.
URL:https://www.quantumx.washington.edu/calendar/mse-seminar-tbd/
LOCATION:Bagley Hall (BAG)
CATEGORIES:Materials Science & Engineering
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260302T143000
DTEND;TZID=America/Los_Angeles:20260302T153000
DTSTAMP:20260525T073609
CREATED:20251120T224014Z
LAST-MODIFIED:20260302T203029Z
UID:7259-1772461800-1772465400@www.quantumx.washington.edu
SUMMARY:MSE Seminar: Xiaoxi Wang
DESCRIPTION:Event interval: Single day eventCampus location: Bagley Hall (BAG)Campus room: 154Accessibility Contact: Matthew Yankowitz\, myank@uw.eduEvent Types: Lectures/Seminars \nTitle: Materials Development and Case Study for Aerospace Applications \nAbstract: The talk will focus on materials development and case studies for aerospace applications\, highlighting innovations in advanced materials such as composites\, plastics\, and foams used in commercial airplanes. Dr. Wang will cover his career journey\, the critical roles of materials and process engineers in aerospace\, and specific case studies including cryogenic insulation\, foam ducts\, foam art frames\, and expandable tooling for composites repair and manufacturing. Emphasizing the importance of meeting design loads\, environmental conditions\, and maintainability while balancing cost\, manufacturability\, sustainability\, safety\, and lifecycle value. Dr. Wang will also reflect on his professional growth\, encouraging active involvement in professional associations\, persistence\, and embracing diversity\, underscoring the broad impact of materials throughout an aircraft’s lifecycle. \nBio: Dr. Xiaoxi Wang\, a Boeing Technical Fellow and Society of Plastics Engineers (SPE) Fellow\, is from the Boeing Commercial Airplanes Product Development (BAC PD) focusing on Technology\, Materials\, and Sustainability. Holder of 47 issued U.S. patents with 27 more pending\, his work has been adopted across more than 3\,000 Boeing aircrafts\, including 737\, 787 and 777X. Dr. Wang produced over 20 publications for major journals and international conferences. Prior to joining Boeing in 2012\, he was a Senior Scientist and an National Science Foundation (NSF) Grant Awardee/PI in MicroGREEN Polymers Inc. He takes leadership roles in professional organizations including Society of Plastics Engineers (SPE)\, Asian American Engineer of the Year (AAEOY)\, Foam Expo North America\, Boeing collaboration with University of Washington Materials Science & Engineering Department\, Boeing Leadership Network (BLN)\, and Boeing Asian and Pacific Association (BAPA). He was elected as Conference Chair for FOAMS® 2026.Dr. Wang earned his Ph.D. in Mechanical Engineering from University of Washington in 2007. He was named 2025 BCA PD Engineer of the Year.
URL:https://www.quantumx.washington.edu/calendar/mse-seminar-tbd-5/
LOCATION:Bagley Hall (BAG)
CATEGORIES:Materials Science & Engineering
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260223T143000
DTEND;TZID=America/Los_Angeles:20260223T153000
DTSTAMP:20260525T073609
CREATED:20251120T224014Z
LAST-MODIFIED:20260223T201526Z
UID:7258-1771857000-1771860600@www.quantumx.washington.edu
SUMMARY:MSE Seminar: Aaron Sharpe
DESCRIPTION:Event interval: Single day eventCampus location: Bagley Hall (BAG)Campus room: 154Accessibility Contact: Matthew Yankowitz\, myank@uw.eduEvent Types: Lectures/Seminars \nTitle: Quantum Electronic Phases in Twisted Trilayer Graphene \nAbstract: Stacking layers of van der Waals materials with an interlayer twist modulates interlayer hopping on the moiré length scale\, enabling control over electronic band structure. We can extend upon this paradigm by introducing a third twisted layer. The system now contains two interfering moiré patterns that modulate the effective local electronic properties on a longer supermoiré length scale. Here\, I will provide two vignettes about the supermoiré system of twisted trilayer graphene. Together\, these studies establish an organizing framework for the correlated phases in twisted trilayer graphene. They reveal a direct correspondence between superconductivity and thermodynamic signatures of electronic correlations. Additionally they suggest a sensitive interplay of the supermoiré modulation and lattice relaxation that dictates the resultant phenomenology. \nFirst\, we will focus on a narrow region of the ‘angle-angle’ space that determines this trilayer structure. Using a scanning single-electron transistor\, we map the impact of electron-electron interactions as a function of twist angle in the sample. We observe gapped correlated insulators and a ‘sawtooth’ in electronic compressibility. Subsequent transport measurements in the same region reveal robust superconductivity. Our measurements indicate that superconductivity is not directly tied to the correlated insulators. Rather\, its critical temperature correlates closely with the strength of the sawtooth in compressibility\, possibly suggesting a common origin or link between the two. \nSecond\, I will discuss how the electronic phases evolve across a broad range of twist angles whose twist angles lie along two continuous lines in the twist-angle parameter space. Different points along these lines exhibit differing phenomenology\, pointing to other variables beyond twist-angle. Theoretical calculations that lattice relaxation in twisted trilayer graphene depends sensitively on both the magnitude and the relative handedness of the angles. \nBio: Dr. Aaron Sharpe is an Associate Scientist at SLAC National Laboratories and Stanford University\, having received his Ph.D. in Applied Physics from Stanford University in 2020 and following a Truman Fellowship at Sandia National Laboratories from 2020 to 2023. Aaron has made a number of key contributions to the world of van der Waals systems\, including the discovery of orbital ferromagnetism in twisted bilayer graphene for which he was awarded UIUC's prestigious McMillan award. His work further includes some of the first evidence of strong correlations in rhombohedral graphene systems. At present\, Aaron focuses on exploring strong correlations in various trilayer moiré systems and rhombohedral graphene systems in the absence of a moiré potential.
URL:https://www.quantumx.washington.edu/calendar/mse-seminar-tbd-4/
LOCATION:Bagley Hall (BAG)
CATEGORIES:Materials Science & Engineering
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260209T143000
DTEND;TZID=America/Los_Angeles:20260209T153000
DTSTAMP:20260525T073609
CREATED:20251120T223128Z
LAST-MODIFIED:20260209T203026Z
UID:7257-1770647400-1770651000@www.quantumx.washington.edu
SUMMARY:MSE Seminar: Xiaoyang Zhu
DESCRIPTION:Event interval: Single day event\nCampus location: Bagley Hall (BAG)\nCampus room: 154\nAccessibility Contact: Matthew Yankowitz\, myank@uw.edu\nEvent Types: Lectures/Seminars \nTitle: TBD \nAbstract: TBD \nBio: TBD
URL:https://www.quantumx.washington.edu/calendar/mse-seminar-xiaoyang-zhu/
LOCATION:Bagley Hall (BAG)
CATEGORIES:Materials Science & Engineering
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260202T143000
DTEND;TZID=America/Los_Angeles:20260202T153000
DTSTAMP:20260525T073609
CREATED:20251120T224014Z
LAST-MODIFIED:20260202T193027Z
UID:7256-1770042600-1770046200@www.quantumx.washington.edu
SUMMARY:MSE Seminar: François Baneyx
DESCRIPTION:Event interval: Single day eventCampus location: Bagley Hall (BAG)Campus room: 154Accessibility Contact: Matthew Yankowitz\, myank@uw.eduEvent Types: Lectures/Seminars \nTitle: TBD \nAbstract: TBD \nBio: TBD
URL:https://www.quantumx.washington.edu/calendar/mse-seminar-tbd-3/
LOCATION:Bagley Hall (BAG)
CATEGORIES:Materials Science & Engineering
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260126T143000
DTEND;TZID=America/Los_Angeles:20260126T153000
DTSTAMP:20260525T073609
CREATED:20251120T224014Z
LAST-MODIFIED:20260126T190100Z
UID:7255-1769437800-1769441400@www.quantumx.washington.edu
SUMMARY:MSE Seminar: Kyunjoo Noh
DESCRIPTION:Event interval: Single day eventCampus location: Bagley Hall (BAG)Campus room: 154Accessibility Contact: Matthew Yankowitz\, myank@uw.eduEvent Types: Lectures/Seminars \nTitle: TBD \nAbstract: TBD \nBio: TBD
URL:https://www.quantumx.washington.edu/calendar/mse-seminar-tbd-2/
LOCATION:Bagley Hall (BAG)
CATEGORIES:Materials Science & Engineering
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260112T143000
DTEND;TZID=America/Los_Angeles:20260112T153000
DTSTAMP:20260525T073609
CREATED:20251120T223928Z
LAST-MODIFIED:20260112T184524Z
UID:7254-1768228200-1768231800@www.quantumx.washington.edu
SUMMARY:MSE Seminar: Avik Som
DESCRIPTION:Event interval: Single day eventCampus location: Bagley Hall (BAG)Campus room: 154Accessibility Contact: Matthew Yankowitz\, myank@uw.eduEvent Types: Lectures/Seminars \nTitle: Image guided biomaterials: Delivering the cure \nAbstract: Locoregional delivery of cancer therapies can dramatically increase the chance of success. However\, biologics require an ability to be “seen” by CT for accurate delivery and retention.  Our group has been building these tools for the delivery to each anatomic compartment\, starting with liver and going to bone. \nBio: Dr. Avik Som\, MD\, PhD is an Assistant Professor of Radiology (Division of Interventional Radiology)\, and Material Science Engineering. He completed his B.Sc in Biomedical Engineering at the Johns Hopkins University and then completed a combination MD/PhD training at Washington University in St. Louis. After medical school\, Dr. Som completed an integrated residency in interventional and diagnostic radiology at the Massachusetts General Hospital. While there he did simultaneous post-doctoral training with Robert Langer and C. Giovanni Traverso at the Massachusetts Institute of Technology with work focused on creating image guided drug delivery for novel cancer immunotherapy\, work translated commercially to Absco Therapeutics. At SAIL\, Dr. Som leads the translation of novel material science advances for applications in interventional radiology based on his clinical practice\, with a focus on novel cancer therapeutics\, tissue engineering\, and device development.  The goal of the lab is to generate new technologies inspired by the clinic and brought back to treat our patients.
URL:https://www.quantumx.washington.edu/calendar/mse-seminar-avik-som/
LOCATION:Bagley Hall (BAG)
CATEGORIES:Materials Science & Engineering
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260105T143000
DTEND;TZID=America/Los_Angeles:20260105T153000
DTSTAMP:20260525T073609
CREATED:20260106T173724Z
LAST-MODIFIED:20260106T173729Z
UID:8334-1767623400-1767627000@www.quantumx.washington.edu
SUMMARY:MSE Seminar: Johannas Pollanen
DESCRIPTION:Superconducting qubits\, and the experimental architecture of circuit quantum electrodynamics (cQED)\, have emerged as not only a promising platform for quantum computation but also for investigating fundamental and applied aspects of synthetic/hybrid quantum systems composed of qubits coupled to other quantum systems or degrees of freedom. In particular\, the ability to leverage the properties of superconducting qubits to investigate and manipulate phononic degrees of freedom opens the door to exploring new regimes of circuit quantum optics using high-frequency sound. Due to the intrinsically strong nonlinearity provided by the qubit\, these types of hybrid “quantum acoustic” systems have the potential to access a broad class of quantum states of motion beyond what is achievable with effectively linear optomechanical or electromechanical interactions.<br><br>In this talk I will describe some of our recent experimental results investigating the fundamental physics of hybrid systems based on superconducting qubits coupled to piezoelectric surface and bulk acoustic wave devices and how these systems can be used to develop next-generation technologies for quantum sensing\, computation\, and communication. As I will describe\, these engineered systems\, in which quantum information stored in the qubit can be controllably coupled to the microscopic surface and bulk phonon modes of a piezoelectric crystal\, are an ideal platform for investigating the exotic behavior of synthetic open quantum systems and phononic interference in the quantum regime. Additionally\, I will describe how these devices pave the way to exciting new technologies ranging from quantum-limited surface sensing to phonon-based bosonic quantum memories.
URL:https://www.quantumx.washington.edu/calendar/mse-seminar-johannas-pollanen-2/
LOCATION:Bagley Hall (BAG)
CATEGORIES:Materials Science & Engineering
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260105T143000
DTEND;TZID=America/Los_Angeles:20260105T153000
DTSTAMP:20260525T073609
CREATED:20251120T223918Z
LAST-MODIFIED:20260105T200154Z
UID:7252-1767623400-1767627000@www.quantumx.washington.edu
SUMMARY:MSE Seminar: Johannas Pollanen
DESCRIPTION:Event interval: Single day eventCampus location: Bagley Hall (BAG)Campus room: 154Accessibility Contact: Matthew Yankowitz\, myank@uw.eduEvent Types: Lectures/Seminars \nTitle: Hybrid quantum phononics with superconducting qubits \nAbstract: Superconducting qubits\, and the experimental architecture of circuit quantum electrodynamics (cQED)\, have emerged as not only a promising platform for quantum computation but also for investigating fundamental and applied aspects of synthetic/hybrid quantum systems composed of qubits coupled to other quantum systems or degrees of freedom. In particular\, the ability to leverage the properties of superconducting qubits to investigate and manipulate phononic degrees of freedom opens the door to exploring new regimes of circuit quantum optics using high-frequency sound. Due to the intrinsically strong nonlinearity provided by the qubit\, these types of hybrid “quantum acoustic” systems have the potential to access a broad class of quantum states of motion beyond what is achievable with effectively linear optomechanical or electromechanical interactions. \nIn this talk I will describe some of our recent experimental results investigating the fundamental physics of hybrid systems based on superconducting qubits coupled to piezoelectric surface and bulk acoustic wave devices and how these systems can be used to develop next-generation technologies for quantum sensing\, computation\, and communication. As I will describe\, these engineered systems\, in which quantum information stored in the qubit can be controllably coupled to the microscopic surface and bulk phonon modes of a piezoelectric crystal\, are an ideal platform for investigating the exotic behavior of synthetic open quantum systems and phononic interference in the quantum regime. Additionally\, I will describe how these devices pave the way to exciting new technologies ranging from quantum-limited surface sensing to phonon-based bosonic quantum memories. \nBio: Prof. Pollanen leads the Laboratory for Hybrid Quantum Systems (LHQS) at Michigan State University (MSU) where his research group investigates the fundamental physics and quantum information applications of systems comprised of trapped electrons\, superconducting qubits\, color-center defects in diamond\, and two-dimensional layered materials. Prof. Pollanen holds the Cowen Distinguished Chair in Experimental Physics and also serves as the Associate Director of the MSU Center for Quantum Computing Science and Engineering (MSU-Q) and is a co-founder and board member of the Midwest Quantum Collaboratory (MQC). Additionally he is a co-founder and Chief Science Officer (CSO) of EeroQ Corporation\, which is a quantum computing startup company located in Chicago working on building a scalable quantum processor based on the spins of electrons trapped above the surface of superfluid helium. Before joining the faculty at MSU\, Pollanen was a IQIM Postdoctoral Scholar at the Institute for Quantum Information and Matter (IQIM) at Caltech. Pollanen received his Ph.D. from Northwestern University.
URL:https://www.quantumx.washington.edu/calendar/mse-seminar-johannas-pollanen/
LOCATION:Bagley Hall (BAG)
CATEGORIES:Materials Science & Engineering
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20251202T133000
DTEND;TZID=America/Los_Angeles:20251202T133000
DTSTAMP:20260525T073609
CREATED:20251114T235244Z
LAST-MODIFIED:20251209T195032Z
UID:5736-1764682200-1764682200@www.quantumx.washington.edu
SUMMARY:Caged Superconductivity Flat Bands and 2D Topological Matter\, Charles Marcus
DESCRIPTION:Caged Superconductivity Flat Bands and 2D Topological Matter\nPAT C-421\nSeminars\nhttps://phys.washington.edu/events/2025-12-02/caged-superconductivity-flat-bands-and-2d-topological-matter
URL:https://www.quantumx.washington.edu/calendar/caged-superconductivity-flat-bands-and-2d-topological-matter/
LOCATION:PAT C-421
CATEGORIES:Materials Science & Engineering,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20251201T160000
DTEND;TZID=America/Los_Angeles:20251201T160000
DTSTAMP:20260525T073609
CREATED:20251117T182509Z
LAST-MODIFIED:20251209T195118Z
UID:5733-1764604800-1764604800@www.quantumx.washington.edu
SUMMARY:High rank multipole order feeling the strain\, Ian Fisher
DESCRIPTION:Speaker: Ian Fisher\, Stanford University\nInteractions can lead to a wide variety of ordered states in materials. Phase transitions in which local atomic states develop spontaneous high rank multipole order provides a particularly rich arena for new insights. A key element in the study of such systems is the ability to couple to the associated order parameter. At its heart\, this colloquium will be about symmetry and thermodynamics.I will describe how one can couple to a variety of different multipolar states\, motivating new methodologies to measure a fundamental thermodynamic material property\, the multipole susceptibility. One can also identify effective transverse fields\, which\, when applied inside the ordered state\, induce quantum fluctuations and can drive a multipolar quantum phase transition. I will explain the very special roles that strain can play for each of the cases\, and will outline new experimental approaches in which the materials ‘feel the strain’ in different ways.Even while we manipulate the crystal lattice to tune electronic order\, hyperfine interactions are not always completely innocent. Along the way I will introduce the special case of an electro-nuclear quantum phase transition.And finally\, the confluence of new measurement techniques and new materials also leads to possibilities for new applications; I will briefly outline one such application\, based on a giant elastocaloric effect. Multipolar order\, it would seem\, is not only interesting from a fundamental perspective\, but can also be useful. Video Link (requires UW NetID)
URL:https://www.quantumx.washington.edu/calendar/high-rank-multipole-order-feeling-the-strain/
LOCATION:Physics/Astronomy Auditorium – PAA A-102\, 3910 15th Ave NE\, Seattle\, WA\, 98105\, United States
CATEGORIES:Materials Science & Engineering
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20251124T143000
DTEND;TZID=America/Los_Angeles:20251124T152000
DTSTAMP:20260525T073609
CREATED:20251120T223906Z
LAST-MODIFIED:20251124T200112Z
UID:7250-1763994600-1763997600@www.quantumx.washington.edu
SUMMARY:MSE Seminar: Peter Sushko
DESCRIPTION:Event interval: Single day eventCampus room: IEB G106Accessibility Contact: Matthew Yankowitz\, myank@uw.eduEvent Types: Lectures/Seminars \nTitle: Understanding and Controlling Interfacial Constraints for Predictive Materials Synthesis \nAbstract: Advancements in materials for energy functions and novel computing devices rely on mastering synthesis processes to achieve precise control over material structures and properties. In this seminar\, I will examine the pivotal role of interfacial constraints in determining the structure and functionality of materials\, emphasizing the need for a detailed understanding of their atomic- scale origins—from interactions and strain to structural inhomogeneity and compositional Variability. \nI will present case studies illustrating this need. First\, I will discuss how interfacial bonding and strain can control the crystallographic orientations of PdO\, Pd\, and Ta—materials vital for catalysis and superconducting qubits. I will also explore the role of subsurface interactions by showcasing how interstitial Te atoms in WTe 2 promote monodispersed Pd cluster formation and how subsurface H atoms influence the catalytic properties of Pd nanostructures. Finally\, I will highlight the role of internal interfaces\, such as grain boundaries\, in facilitating these processes. These examples underscore the importance of understanding atomic-scale deviations in crystallographic and compositional order\, controlling these deviations\, and leveraging them to guide the synthesis and transformation of functional materials. \nBio: Dr. Peter Sushko is a computational materials scientist in the Physical Sciences Division at Pacific Northwest National Laboratory (PNNL). He earned his BSc and MSc degrees in physics from St. Petersburg State University\, Russia. He then completed his PhD in physics at University College London (UCL)\, UK\, where he developed an embedded cluster approach to simulate the electronic properties of point defects in ionic materials. In 2008\, Dr. Sushko was awarded a Royal Society University Research Fellowship and joined the UCL Department of Physics and Astronomy as a Lecturer\, subsequently becoming a Reader. In 2014\, he joined PNNL as the leader of the Materials Sciences group in the Physical Sciences Division. In 2021\, he became the coordinator for the DOE Office of Sciences Basic Energy Sciences\, Materials Sciences and Engineering sector at PNNL. His research focuses on uncovering atomic-scale mechanisms of defect formation and transport\, as well as predicting how disorder and defects influence material properties and functions. He has co-authored over 220 peer-reviewed papers on the physical and chemical properties of nanostructured materials and interfacial phenomena.
URL:https://www.quantumx.washington.edu/calendar/mse-seminar-peter-sushko/
LOCATION:Interdisciplinary Engineering Building – IEB G106\, 4000 E Stevens Way NE\, Seattle\, WA\, 98195\, United States
CATEGORIES:Materials Science & Engineering
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20251117T143000
DTEND;TZID=America/Los_Angeles:20251117T152000
DTSTAMP:20260525T073609
CREATED:20251120T223855Z
LAST-MODIFIED:20251120T223855Z
UID:7248-1763389800-1763392800@www.quantumx.washington.edu
SUMMARY:MSE Seminar: Jenna Pope
DESCRIPTION:Event interval: Single day eventCampus room: IEB G106Accessibility Contact: Matthew Yankowitz\, myank@uw.eduEvent Types: Lectures/Seminars \nTitle: BUQ4MLIP: Uncertainty Quantification for Machine Learning Interatomic Potentials \nAbstract: Machine learning interatomic potentials (MLIPs) are transforming atomistic simulations by providing ab initio-level accuracy at orders-of-magnitude faster speeds. Universal MLIPs\, also called foundation models\, are trained across large\, chemically diverse datasets with the goal of broad transferability to new atomic environments. However\, the blackbox nature of MLIPs obscures the relationship between atomic environments and predicted outputs\, making it difficult to discern when the model is operating within its domain of validity and when its outputs may be unreliable. Uncertainty quantification (UQ) provides interpretable metrics that indicate the confidence or reliability of MLIP predictions. This talk will discuss UQ approaches using quantile regression to produce confidence intervals around the predicted output that can be used to assess the trustworthiness of MLIP-driven simulations. \nBio: Dr. Jenna Pope (who publishes under the name Jenna A. Bilbrey) is a Data Scientist at Pacific Northwest National Laboratory\, working within the National Security Directorate. Her research bridges computational chemistry\, materials science\, and AI/ML\, with a focus on applying deep learning and uncertainty quantification methods to chemical and materials modeling. She holds a PhD in computational chemistry from the University of Georgia and a BS in chemistry from the University of West Florida. Her projects are highly interdisciplinary and involve close collaboration with both experimentalists and theoreticians. Over the course of her career\, she has published on topics such as neural network potentials\, active learning for materials simulations\, and graph-component methods for defect analysis. 
URL:https://www.quantumx.washington.edu/calendar/mse-seminar-jenna-pope/
LOCATION:<a href="https://maps.app.goo.gl/uNfzCjvWuGcLMbSd9" title="https://maps.app.goo.gl/uNfzCjvWuGcLMbSd9">maps.app.goo.gl…</a>
CATEGORIES:Materials Science & Engineering
END:VEVENT
END:VCALENDAR