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

Journal Article · Sat Mar 21 00:00:00 EDT 2015 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4913828· OSTI ID:22399284

Faugeras, C.; Barra, A. -L.; Martinez, G.; Potemski, M. ^[1]; Basko, D. M. ^[2]; Zholudev, M. S. ^[3]; Teppe, F.; Knap, W. ^[3]; Gavrilenko, V. I. ^[4]; Mikhailov, N. N.; Dvoretskii, S. A. ^[5]; Neugebauer, P. ^[6]; Berger, C. ^[7]; Heer, W. A. de ^[7]

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1. Laboratoire National des Champs Magnétiques Intenses, CNRS-UJF-UPS-INSA, 38042 Grenoble (France)
2. LPMMC UMR 5493, Université Grenoble 1/CNRS, B.P. 166, 38042 Grenoble (France)
3. Laboratoire Charles Coulomb (L2C), UMR CNRS 5221, GIS-TERALAB, Université Montpellier II, 34095 Montpellier (France)
4. Institute for Physics of Microstructures, RAS, Nizhny Novgorod GSP-105 603950 (Russian Federation)
5. A.V. Rzhanov Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk 630090 (Russian Federation)
6. Institut für Physikalische Chemie, Universität Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart (Germany)
7. School of Physics, Georgia Institute of Technology, Atlanta, Georgia 30332 (United States)

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.

• OSTI ID: 22399284
• Journal Information: Journal of Applied Physics, Vol. 117, Issue 11; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

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