Electrodynamic response of the type-II Weyl semimetal YbMnBi2

Chinotti, M.; Pal, A.; Ren, W. J.; Petrovic, C.; Degiorgi, L.

doi:10.1103/PhysRevB.94.245101

Title: Electrodynamic response of the type-II Weyl semimetal ${YbMnBi}_{2}$

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:

Chinotti, M. ^[1]; Pal, A. ^[1]; Ren, W. J. ^[2]; Petrovic, C. ^[3]; Degiorgi, L. ^[1]

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:: 2016-12-01

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.

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                    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

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                    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.

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@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}

}

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Title: Electrodynamic response of the type-II Weyl semimetal YbMnBi 2

Abstract

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Title: Electrodynamic response of the type-II Weyl semimetal ${YbMnBi}_{2}$

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Structured Weyl Points in Spin-Orbit Coupled Fermionic Superfluids
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journal, September 2019

Quasi-two-dimensional massless Dirac fermions in ${CaMnSb}_{2}$
journal, January 2017

Epsilon-near-zero response and tunable perfect absorption in Weyl semimetals
journal, August 2018

Infrared spectroscopic measurements of structural transition and charge dynamics in $1 T − {TiTe}_{2}$ under pressure
journal, March 2019

Weyl and Dirac Semimetals in Three Dimensional Solids
text, January 2017

Transport and optics at the node in a nodal loop semimetal
text, January 2017

Anomalous DC Hall response in noncentrosymmetric tilted Weyl semimetals
text, January 2018

Imaginary part of Hall conductivity in tilted doped Weyl semimetal with both broken time reversal and inversion symmetry
text, January 2018

Epsilon-Near-Zero Response and Tunable Perfect Absorption in Weyl Semimetals
text, January 2018