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Title: Magneto-Optical Signature of Massless Kane Electrons in Cd3As2

Here, we report on optical reflectivity experiments performed on Cd3As2 over a broad range of photon energies and magnetic fields. The presence of 3D massless charge carriers are clearly indicated in the observed response. The specific cyclotron resonance absorption in the quantum limit implies that we are probing massless Kane electrons rather than symmetry-protected 3D Dirac particles. Furthermore, the latter may appear at a smaller energy scale and are not directly observed in our infrared experiments.
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [5] ;  [3] ;  [6] ;  [7] ;  [7] ;  [8] ;  [8] ;  [9] ;  [10] ;  [9] ;  [11] ;  [11] ;  [12] ;  [13] ;  [1] ;  [2] more »;  [2] ;  [2] ;  [2] ;  [14] « less
  1. Univ. of Geneva (Switzerland). Dept. of Quantum Matter Physics
  2. Centre National de la Recherche Scientifique (CNRS), Grenoble (France). National Lab. of Intense Magnetic Fields
  3. Univ. of Paris-Sud, Orsay (France). Lab. of Solid State Physics (LPS)
  4. Univ. of Geneva (Switzerland). GAP-Biophotonics
  5. Centre National de la Recherche Scientifique (CNRS), Grenoble (France). National Lab. of Intense Magnetic Fields; Brno Univ. of Technology (Czech Republic)
  6. Brookhaven National Lab. (BNL), Upton, NY (United States). Condensed Matter Physics and Materials Science Dept.
  7. Masaryk Univ., Brno (Czech Republic). Central European Inst. of Technology (CEITEC)
  8. Univ. of Montpellier (France). Charles Coulomb Lab.
  9. Johns Hopkins Univ., Baltimore, MD (United States). Inst. for Quantum Matter
  10. Johns Hopkins Univ., Baltimore, MD (United States). Inst. for Quantum Matter; Univ. of California, Berkeley, CA (United States). Dept. of Physics
  11. Academy of Sciences of Moldova, Chisinau (Moldova). Inst. of Applied Physics
  12. Princeton Univ., NJ (United States). Dept. of Chemistry
  13. Princeton Univ., NJ (United States). Inst. of Physics
  14. Centre National de la Recherche Scientifique (CNRS), Grenoble (France). National Lab. of Intense Magnetic Fields; Charles Univ., Prague (Czech Republic). Inst. of Physics
Publication Date:
Report Number(s):
BNL-112683-2016-JA
Journal ID: ISSN 0031-9007; PRLTAO; R&D Project: PO016; KC0202020
Grant/Contract Number:
SC00112704; FG02-08ER46544; SC0012704
Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 117; Journal Issue: 13; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
OSTI Identifier:
1336158
Alternate Identifier(s):
OSTI ID: 1325842