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X-WR-CALNAME:Stewart Blusson Quantum Matter Institute
X-ORIGINAL-URL:https://qmi.miffanytark.com
X-WR-CALDESC:Events for Stewart Blusson Quantum Matter Institute
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DTSTART;TZID=America/Vancouver:20231102T100000
DTEND;TZID=America/Vancouver:20231102T110000
DTSTAMP:20231019T171838Z
CREATED:20231019T171838Z
LAST-MODIFIED:20231019T171838Z
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SUMMARY:CM Seminar: Joe Checkelsky– Massachusetts Institute of Technology: Natural Superlattice Design of Modulated Superconductors
DESCRIPTION:Joe Checkelsky– Massachusetts Institute of Technology\nTitle: Natural Superlattice Design of Modulated Superconductors \nAbstract: Connecting theoretical models for exotic quantum states to real materials is a key goal in quantum materials synthesis.  Two-dimensional model systems have been proposed to host a wide variety of exotic phases- historically a number of techniques have been used to realize these including thin film growth and mechanical exfoliation.  We describe here our recent progress in experimentally realizing 2D model systems using bulk crystal synthesis including modulated superconducting states.  We discuss their structures and the new phenomena that they support.  We comment on the perspective for realizing further 2D model systems in complex material structures and their connections to other methods for realizing 2D systems. \nSpeaker bio: Professor Checkelsky joined the Department of Physics at MIT as an assistant professor in January 2014. He received his B.S. in Physics in 2004 from Harvey Mudd College and Ph.D. in Physics in 2010 from Princeton University. Before coming to MIT\, Professor Checkelsky did postdoctoral work at Japan’s Institute for Physical and Chemical Research (RIKEN) and held the position of lecturer at the University of Tokyo. He was promoted to associate professor in 2019 and in 2020 named a Mitsui Career Development Professor in Contemporary Technology\, an appointment he will hold until 2023.
URL:https://qmi.miffanytark.com/event/cm-seminar-joe-checkelsky-massachusetts-institute-of-technology-natural-superlattice-design-of-modulated-superconductors/
CATEGORIES:CM Seminar
ORGANIZER;CN="Aditi Adhikari":MAILTO:aditi.adhikari@ubc.ca
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BEGIN:VEVENT
DTSTART;TZID=America/Vancouver:20231109T100000
DTEND;TZID=America/Vancouver:20231109T110000
DTSTAMP:20231106T165636Z
CREATED:20231106T165636Z
LAST-MODIFIED:20231106T165636Z
UID:6623-1699524000-1699527600@qmi.miffanytark.com
SUMMARY:Ars Scientia Artist Talks: Depicting the World Through the Rhythm of the Oceans by Javiera Tejerina-Risso
DESCRIPTION:How can artists introduce innovative ways of understanding our place in the planetary scheme\, while taking into consideration the diverse entities that contribute to the delicate balance of ecosystems? Some artists are exploring landscape-installations as a means to sensitize us to the simultaneity of events on a global scale\, showcasing the intricate interconnections between various ecological phenomena. They draw upon knowledge from multiple disciplines to achieve this. Scientists extend invitations to artists to collaborate within their laboratories\, fostering the emergence of cross-disciplinary and mutually enriching perspectives\, thus weaving new narratives about our world. \nDuring this talk\, artist Javiera Tejerina-Risso will share a brief overview of her previous art and science collaborations\, as well as the prospects for the Quantum residency at the QMI. \nArtist bio: Javiera Tejerina-Risso\, a French-Chilean artist based in Marseille\, France\, has a practice-based PhD from Aix-Marseille University. She participated in Bruno Latour’s Arts+Politics SPEAP Sciences Po\, Paris and has held residencies at the Ateliers de la ville de Marseille\, Espace 36\, the Djerassi Resident Artist Program\, La Cupula Mérida and IRPHE & IMER Laboratories. She is regularly invited to deliver workshops at art academies including: Ecole d’art supérieure d’Aix-en-Provence\, Ecole supérieure d’Art et de design de Toulon\, Instituto de Arte PUCV à Viña del Mar Chile\, and UNAY Mérida Mexico. In France\, her work has been shown at Les Tanneries Art Center\, La Friche de la Belle de Mai\, Variation Media Art Fair\, Objectif Vidéo Nice (OVNI)\, the 68th edition of Jeune Création\, Dos Mares in Marseille and at international festivals such as VidéoFormes\, Time is Love Screenings\, and Proyector 15\, and Sci-Art UCLA. She recently showed her work at the Bienal Tlatelolca in CDMX. Tejerina-Risso’s work unfolds in the exhibition space primarily in the form of installations and videos and engages deeply with the scientific imagination\, notably relying on the vocabulary and research in physics.
URL:https://qmi.miffanytark.com/event/ars-scientia-artist-talks-depicting-the-world-through-the-rhythm-of-the-oceans-by-javiera-tejerina-risso/
ORGANIZER;CN="Aditi Adhikari":MAILTO:aditi.adhikari@ubc.ca
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Vancouver:20231116T100000
DTEND;TZID=America/Vancouver:20231116T110000
DTSTAMP:20231006T212241Z
CREATED:20231006T212241Z
LAST-MODIFIED:20231006T212241Z
UID:6425-1700128800-1700132400@qmi.miffanytark.com
SUMMARY:CM Seminar: Xiaodong Xu – University of Washington: Observation of Fractional Quantum Anomalous Hall Effect
DESCRIPTION:Xiaodong Xu – University of Washington\nTitle: Observation of Fractional Quantum Anomalous Hall Effect \nAbstract: The interplay between spontaneous symmetry breaking and topology can result in exotic quantum states of matter. A celebrated example is the quantum anomalous Hall (QAH) state\, which exhibits an integer quantum Hall effect at zero magnetic field due to topologically nontrivial bands and intrinsic magnetism. In the presence of strong electron-electron interactions\, fractional-QAH (FQAH) states at zero magnetic field can emerge\, which is a lattice analog of fractional quantum Hall effect without Landau level formation. In this talk\, I will present experimental observation of FQAH states in twisted MoTe2 bilayer\, using combined magneto-optical and -transport measurements. In addition to the Chern number -1 integer\, and -2/3 and -3/5 fractional QAH states\, we find an anomalous Hall state near the filling factor -1/2\, whose behavior resembles that of the composite Fermi liquid in the half-filled lowest Landau level of a two-dimensional electron gas at high magnetic field. Direct observation of the FQAH and associated effects paves the way for researching charge fractionalization and anyonic statistics at zero magnetic field. \nSpeaker bio: Xiaodong Xu is a Boeing Distinguished Professor in the Department of Physics\, and Department of Materials Science and Engineering at the University of Washington. He obtained a PhD in Physics from the University of Michigan in 2008. After postdoc research at Cornell University\, he joined the University of Washington in 2010. He is a Fellow of American Physical Society and Optical Society of America.
URL:https://qmi.miffanytark.com/event/cm-seminar-xiaodong-xu-university-of-washington-observation-of-fractional-quantum-anomalous-hall-effect/
CATEGORIES:CM Seminar
ORGANIZER;CN="Aditi Adhikari":MAILTO:aditi.adhikari@ubc.ca
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BEGIN:VEVENT
DTSTART;TZID=America/Vancouver:20231123T100000
DTEND;TZID=America/Vancouver:20231123T110000
DTSTAMP:20231106T183834Z
CREATED:20231106T183834Z
LAST-MODIFIED:20231106T183834Z
UID:6627-1700733600-1700737200@qmi.miffanytark.com
SUMMARY:CM Seminar: Jeff Sonier – Simon Fraser University: Muon Studies of Superconducting UTe2
DESCRIPTION:Jeff Sonier – Simon Fraser University\nTitle: Muon Studies of Superconducting UTe2 \nAbstract: Recently discovered UTe2 is believed to be a long-sought spin-triplet superconductor\, but its magnetic properties and superconducting order parameter are matters of controversy. The observation of a nonzero polar Kerr effect in the superconducting state of UTe2 single crystals exhibiting two phase transitions in the specific heat has been taken as evidence of a time-reversal symmetry (TRS) breaking order parameter and chiral superconductivity. Yet a more recent study of the polar Kerr effect in single crystals exhibiting a single-phase transition found no evidence for TRS breaking. Zero-field muon spin relaxation (SR) is an ideal tool for independently determining whether TRS symmetry is spontaneously broken at the superconducting transition temperature\, Tc\, but until recently it has not been possible to investigate this in UTe2 due to the presence of slowly fluctuating spins. I will first explain what SR has revealed about the magnetic interactions in UTe2\, which potentially play a role in the pairing mechanism that gives rise to spin-triplet superconductivity. I will then describe recent SR studies of a new generation of UTe2 single crystals\, which shed light on the role disorder plays in the magnetic fluctuations and have provided an opportunity to look into whether TRS is broken. \nSpeaker bio: Jeff Sonier is a Professor at Simon Fraser University.
URL:https://qmi.miffanytark.com/event/cm-seminar-jeff-sonier-simon-fraser-university-muon-studies-of-superconducting-ute2/
CATEGORIES:CM Seminar
ORGANIZER;CN="Aditi Adhikari":MAILTO:aditi.adhikari@ubc.ca
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BEGIN:VEVENT
DTSTART;TZID=America/Vancouver:20231130T100000
DTEND;TZID=America/Vancouver:20231130T110000
DTSTAMP:20231124T181128Z
CREATED:20231124T181128Z
LAST-MODIFIED:20231124T181128Z
UID:6713-1701338400-1701342000@qmi.miffanytark.com
SUMMARY:CM Seminar: Nitin Kaushal – QMI: Realization of magnetically frustrated Wigner crystals and a novel multiorbital model in transition metal dichalcogenide based moiré materials
DESCRIPTION:Nitin Kaushal – Quantum Matter Institute \nTitle: Realization of magnetically frustrated Wigner crystals and a novel multiorbital model in transition metal dichalcogenide based moiré materials \nAbstract: Moiré materials constructed using the transition metal dichalcogenide (TMD) bilayers have been used to simulate the Hubbard model with long range Coulomb interactions procuring the lattice Wigner crystal states at fractional fillings like n=2/3\, 1/2\, and 1/3. We study the gamma-valley TMD homobilayers which can give rise to the effective moire honeycomb lattices\, as shown by recent ab-initio studies. We discuss the effect of Coulomb interactions in these homobilayers unveiling the plethora of frustrated magnetic states on Wigner crystals at various fractional fillings\, which suggests the latent potential of these materials to realize quantum spin liquids. Moreover\, by performing Wannierization of the moiré bands we show that these materials can realize a more general moire Kanamori-Hubbard model\, opening an avenue for physics beyond the extensively studied multiorbital Hubbard model. \nSpeaker Bio: Dr. Nitin Kaushal is a postdoctoral fellow at the Quantum Matter Institute working with Professor Marcel Franz’s group. Prior to joining UBC\, he worked as a postdoctoral researcher at the Oak Ridge National Laboratory (2020-2023. Nitin completed his PhD at the University of Tennessee in 2020\, under the guidance of Prof. Elbio Dagotto. During his Ph.D.\, he investigated the effects of atomic spin-orbit coupling on the multi-orbital Hubbard models. In recent years\, Nitin’s research has been centered on moiré materials.
URL:https://qmi.miffanytark.com/event/cm-seminar-nitin-kaushal-qmi-realization-of-magnetically-frustrated-wigner-crystals-and-a-novel-multiorbital-model-in-transition-metal-dichalcogenide-based-moire-materials/
LOCATION:McLeod 3038\, 2356 Main Mall\, Vancouver\, British Columbia\, V6T 1Z3\, Canada
CATEGORIES:CM Seminar
ORGANIZER;CN="Aditi Adhikari":MAILTO:aditi.adhikari@ubc.ca
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