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This article is cited in 5 scientific papers (total in 5 papers)
CONDENSED MATTER
Terahertz spectroscopy of two-dimensional semimetal in three-layer InAs/GaSb/InAs quantum well
S. S. Krishtopenkoab, S. Ruffenachb, F. Gonzalez-Posadac, C. Consejob, W. Desratb, B. Jouaultb, W. Knapb, M. A. Fadeevab, A. M. Kadykovba, V. V. Rumyantseva, S. V. Morozova, G. Boissierc, E. Tourniéc, V. I. Gavrilenkoa, F. Teppeb a Institute for Physics of Microstructures, Russian Academy of Sciences, Nizhny Novgorod, Russia
b Laboratoire Charles Coulomb, UMR CNRS 5221, Université de Montpellier, Montpellier, France
c Institut d’Electronique et des Systemes, UMR CNRS 5214, Université de Montpellier, Montpellier, France
Abstract:
The features of terahertz photoluminescence and magnetoabsorption in magnetic fields up to 16 T in threelayer InAs/GaSb/InAs quantum wells with a band structure corresponding to a “two-dimensional semimetal” are studied. The comparison of the positions and amplitudes of the photoluminescence lines with the theoretical calculations of oscillator strengths for interband and intraband transitions performed using the eight-band Kane Hamiltonian indicates the existence of a nonradiative recombination channel associated with the overlap of the conduction and valence bands. The energies of interband and intraband Landau level transitions observed in the magnetoabsorption spectra are in good agreement with theoretical calculations, which confirms the predicted band structure.
Received: 05.10.2018 Revised: 12.11.2018 Accepted: 16.11.2018
Citation:
S. S. Krishtopenko, S. Ruffenach, F. Gonzalez-Posada, C. Consejo, W. Desrat, B. Jouault, W. Knap, M. A. Fadeev, A. M. Kadykov, V. V. Rumyantsev, S. V. Morozov, G. Boissier, E. Tournié, V. I. Gavrilenko, F. Teppe, “Terahertz spectroscopy of two-dimensional semimetal in three-layer InAs/GaSb/InAs quantum well”, Pis'ma v Zh. Èksper. Teoret. Fiz., 109:2 (2019), 91–97; JETP Letters, 109:2 (2019), 96–101
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https://www.mathnet.ru/eng/jetpl5799 https://www.mathnet.ru/eng/jetpl/v109/i2/p91
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