Electrodynamic response of the type-II Weyl semimetal
Abstract
Weyl fermions play a major role in quantum field theory but have been quite elusive as fundamental particles. These quasi-two-dimensional bismuth layers based materials were recently designed and provide an arena for studying the interplay between anisotropic Dirac fermions, magnetism, and structural changes, allowing the formation of Weyl fermions in condensed matter. We perform an optical investigation of YbMnBi 2 , a representative type-II Weyl semimetal, and contrast its excitation spectrum with the optical response of the more conventional semimetal EuMnBi 2 . This comparative study allows us to disentangle the optical fingerprints of type-II Weyl fermions, but also challenges the present theoretical understanding of their electrodynamic response.
- Authors:
-
- ETH Zurich (Switzerland). Lab. for Solid State Physics
- Brookhaven National Lab. (BNL), Upton, NY (United States). Condensed Matter Physics and Materials Science Dept.; Chinese Academy of Sciences (CAS), Shenyang (China). Inst. of Metal Research and Shenyang National Lab. for Materials Science
- Brookhaven National Lab. (BNL), Upton, NY (United States). Condensed Matter Physics and Materials Science Dept.
- Publication Date:
- Research Org.:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1342653
- Alternate Identifier(s):
- OSTI ID: 1334208
- Report Number(s):
- BNL-113489-2017-JA
Journal ID: ISSN 2469-9950; PRBMDO; R&D Project: PM016; KC0201050; TRN: US1701187
- Grant/Contract Number:
- SC00112704; SC0012704
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review B
- Additional Journal Information:
- Journal Volume: 94; Journal Issue: 24; Journal ID: ISSN 2469-9950
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Citation Formats
Chinotti, M., Pal, A., Ren, W. J., Petrovic, C., and Degiorgi, L. Electrodynamic response of the type-II Weyl semimetal YbMnBi2. United States: N. p., 2016.
Web. doi:10.1103/PhysRevB.94.245101.
Chinotti, M., Pal, A., Ren, W. J., Petrovic, C., & Degiorgi, L. Electrodynamic response of the type-II Weyl semimetal YbMnBi2. United States. https://doi.org/10.1103/PhysRevB.94.245101
Chinotti, M., Pal, A., Ren, W. J., Petrovic, C., and Degiorgi, L. Thu .
"Electrodynamic response of the type-II Weyl semimetal YbMnBi2". United States. https://doi.org/10.1103/PhysRevB.94.245101. https://www.osti.gov/servlets/purl/1342653.
@article{osti_1342653,
title = {Electrodynamic response of the type-II Weyl semimetal YbMnBi2},
author = {Chinotti, M. and Pal, A. and Ren, W. J. and Petrovic, C. and Degiorgi, L.},
abstractNote = {Weyl fermions play a major role in quantum field theory but have been quite elusive as fundamental particles. These quasi-two-dimensional bismuth layers based materials were recently designed and provide an arena for studying the interplay between anisotropic Dirac fermions, magnetism, and structural changes, allowing the formation of Weyl fermions in condensed matter. We perform an optical investigation of YbMnBi 2 , a representative type-II Weyl semimetal, and contrast its excitation spectrum with the optical response of the more conventional semimetal EuMnBi 2 . This comparative study allows us to disentangle the optical fingerprints of type-II Weyl fermions, but also challenges the present theoretical understanding of their electrodynamic response.},
doi = {10.1103/PhysRevB.94.245101},
journal = {Physical Review B},
number = 24,
volume = 94,
place = {United States},
year = {2016},
month = {12}
}
Web of Science
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