Cyclotron Resonance in InAs/AlSb Quantum Wells in Magnetic Fields up to 45 T
Cyclotron Resonance in InAs/AlSb Quantum Wells in Magnetic Fields up to 45 T
Spirin, K. E.; Krishtopenko, S. S.; Sadofyev, Y. G.; Drachenko, O.; Helm, M.; Teppe, F.; Knap, W.; Gavrilenko, V. I.
Electron cyclotron resonance in InAs/AlSb heterostructures with quantum wells of various widths in pulsed magnetic fields up to 45 T are investigated. Our experimental cyclotron energies are in satisfactory agreement with the results of theoretical calculations performed using the eight-band kp Hamiltonian. The shift of the cyclotron resonance (CR) line, which corresponds to the transition from the lowest Landau Level to the low magnetic-field region, is found upon varying the electron concentration due to the negative persistent photoconductivity effect. It is shown that the observed shift of the CR lines is associated with the finite width of the density of states at the Landau levels.
Keywords: cyclotron resonance; quantum wells
Involved research facilities
- Radiation Source ELBE DOI: 10.17815/jlsrf-2-58
- High Magnetic Field Laboratory (HLD)
Related publications
- DOI: 10.17815/jlsrf-2-58 is cited by this (Id 23083) publication
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Semiconductors 49(2015)12, 1616-1622
DOI: 10.1134/S1063782615120210
ISSN: 1063-7826
Permalink: https://www.hzdr.de/publications/Publ-23083