Dresden 2020 – scientific programme
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O: Fachverband Oberflächenphysik
O 122: Topology and Symmetry Protected Materials II
O 122.3: Talk
Friday, March 20, 2020, 11:00–11:15, WIL A317
First-principles investigation of strained Weyl semimetals — •Yangjun Lee1,2,3 and Cheol-Hwan Park1,2,3 — 1Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea — 2Center for Correlated Electron Systems, Institute for Basic Science, Seoul 08826, Korea — 3Center for Theoretical Physics, Seoul National University, Seoul 08826, Korea
A Weyl semimetal is characterized by pairs of Weyl points, which are topologically protected band degeneracies. Weyl semimetals host interesting phenomena such as Fermi arc surface states and chiral anomaly. There have been fascinating theoretical studies on strained Weyl semimetals, e.g., Refs. [1-3]. In this talk, we present the results of our first-principles calculations on the electronic structure of strained Weyl semimetals. From these results, we provide some of the relevant materials parameters related to the electron-phonon coupling in Weyl semimetals.
[1] Cortijo, Alberto, et al, Physical Review B 94.24 (2016): 241405. [2] Arjona, Vicente, and María AH Vozmediano, Physical Review B 97.20 (2018): 201404. [3] Chernodub, M. N., and María AH Vozmediano, arXiv preprint arXiv:1904.09113 (2019).