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- Title
Magnetoabsorption of Dirac Fermions in InAs/GaSb/InAs “Three-Layer” Gapless Quantum Wells.
- Authors
Ruffenach, S.; Krishtopenko, S. S.; Bovkun, L. S.; Ikonnikov, A. V.; Marcinkiewicz, M.; Consejo, C.; Potemski, M.; Piot, B.; Orlita, M.; Semyagin, B. R.; Putyato, M. A.; Emel’yanov, E. A.; Preobrazhenskii, V. V.; Knap, W.; Gonzalez-Posada, F.; Boissier, G.; Tournié, E.; Teppe, F.; Gavrilenko, V. I.
- Abstract
Cyclotron resonance spectra in high magnetic fields up to 34 T in InAs/GaSb/InAs “three-layer” quantum wells with gapless Dirac fermions have been studied. In quantizing magnetic fields, an absorption line associated with transitions from the lower Landau levels of electrons in a subband with a “conical” dispersion relation has been detected. Experimental energies of the transitions have been compared to theoretical calculations with the eight-band Kane Hamiltonian. The results confirm the gapless band structure of the studied samples.
- Subjects
NARROW gap semiconductors; ELECTRONIC band structure; MAGNETIC fields; QUANTUM wells; DISPERSION (Chemistry)
- Publication
JETP Letters, 2017, Vol 106, Issue 11, p727
- ISSN
0021-3640
- Publication type
Article
- DOI
10.1134/S0021364017230102