Los Angeles Chapter: February 2024
Presenting Linda Ye:
Topology and Correlation in Kagome Lattice Metals
Tuesday, February 20th, 2024
IN-PERSON Meeting
Date: February 20th, 2024
Location: Tianqiao and Chrissy Chen Neuroscience Research building (Breezeway, Foyer, and Auditorium), Caltech
Parking: Street or garage parking along Wilson Ave between California and Del Mar
Itinerary:
- Social hour at 5:00 PM, with bar service + hors d'oeuvres
- 6:30 PM dinner (see options below)
- 7:30 PM lecture by Dr. Linda Ye, with dessert service
Meeting will be in person @ California Institute of Technology (Chen Breezeway, Chen Foyer, and Lecture Hall Chen 100)
Address: 1200 E. California Blvd., Pasadena, CA 91125
The two-dimensional kagome lattice comprised of corner-shared triangles is theoretically expected to host multiple exotic band features such as Dirac points, van Hove singularity and flat bands in its tight-binding model. The intricate interplay of these band features with spin-orbit coupling and electron-electron interactions renders the kagome lattice an exceptionally promising platform for the realization of topological and correlated electronic states. Recently, a growing family of transition metal-based intermetallic materials, known as "kagome metals," has been found to faithfully realize the anticipated model kagome electronic structure. In this talk, we will focus on the ongoing advancements in the pursuit of topological and correlated phases in binary kagome metals; in particular, we will highlight the band topology in the ferromagnetic phase, the emergence of flat bands as well as non-Fermi liquid behavior in these kagome metals.
References:
[1] L. Ye and M. Kang et al., Nature 555, 638-642 (2018).
[2] L. Ye et al., Nat. Phys. advance online publication (2024).
Dr. Linda Ye just joined the Division of Physics, Mathematics and Astronomy as an Assistant Professor of Physics at California Institute of Technology in September 2023. Her research focuses on designing topological and correlated quantum materials via materials synthesis, high precision transport measurements in combination with cryogenic strain tuning. She pioneered in the discovery of an emerging class of novel quantum materials termed “kagome metals”. Ye received the Block Award from Aspen Center for Physics in 2020. She received her doctoral degree in Physics from Massachusetts Institute of Technology in 2020 and obtained her M. Eng. in Applied Physics from the University of Tokyo in 2014, and B.Sc. in Mathematics and Physics from Tsinghua University in 2012.
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