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Title: Infrared magneto-spectroscopy of two-dimensional and three-dimensional massless fermions: A comparison

Here, we report on a magneto-optical study of two distinct systems hosting massless fermions—two-dimensional graphene and three-dimensional HgCdTe tuned to the zero band gap condition at the point of the semiconductor-to-semimetal topological transition. Both materials exhibit, in the quantum regime, a fairly rich magneto-optical response, which is composed from a series of intra- and interband inter-Landau level resonances with for massless fermions typical √(B) dependence. The impact of the system's dimensionality and of the strength of the spin-orbit interaction on the optical response is also discussed.
Authors:
 [1] ;  [2] ; ; ; ;  [1] ;  [3] ;  [4] ;  [5] ; ;  [4] ;  [6] ; ;  [7] ;  [8] ;  [9] ;  [10] ;  [9]
  1. Laboratoire National des Champs Magnétiques Intenses, CNRS-UJF-UPS-INSA, 38042 Grenoble (France)
  2. (Czech Republic)
  3. LPMMC UMR 5493, Université Grenoble 1/CNRS, B.P. 166, 38042 Grenoble (France)
  4. Laboratoire Charles Coulomb (L2C), UMR CNRS 5221, GIS-TERALAB, Université Montpellier II, 34095 Montpellier (France)
  5. (Russian Federation)
  6. Institute for Physics of Microstructures, RAS, Nizhny Novgorod GSP-105 603950 (Russian Federation)
  7. A.V. Rzhanov Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk 630090 (Russian Federation)
  8. Institut für Physikalische Chemie, Universität Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart (Germany)
  9. School of Physics, Georgia Institute of Technology, Atlanta, Georgia 30332 (United States)
  10. (France)
Publication Date:
OSTI Identifier:
22399284
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 117; Journal Issue: 11; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ABSORPTION SPECTROSCOPY; CADMIUM TELLURIDES; COMPARATIVE EVALUATIONS; FERMIONS; GRAPHENE; INFRARED SPECTRA; L-S COUPLING; MAGNETO-OPTICAL EFFECTS; MERCURY COMPOUNDS; SEMICONDUCTOR MATERIALS; SEMIMETALS; THREE-DIMENSIONAL LATTICES; TWO-DIMENSIONAL SYSTEMS