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Title: Magneto-infrared study of electron-hole system in strained semimetallic HgTe quantum wells

Magneto infrared absorption measurements have been performed on HgTe/CdHgTe quantum wells with different thicknesses grown on (013) GaAs substrate. Cyclotron resonance effective masses, inter-Landau-level transition energies and their dependence on magnetic field are measured. The measured intersubband energies are in good agreement with the theoretically calculated values. Strong spin-orbit interaction is responsible for cyclotron resonance splitting in asymmetric quantum wells. We demonstrate that the increase of the quantum well thickness leads to a semimetallic state, allowing for simultaneous observation of holes and electron transitions.
Authors:
;  [1] ;  [2] ;  [3] ; ;  [4] ; ;  [5]
  1. Ioffe Physical Technical Institute RAS, St. Petersburg, 194021 (Russian Federation)
  2. Rzhanov Institute of Semiconductor Physics SB RAS, Novosibirsk, 630090 (Russian Federation)
  3. Stony Brook University, Stony Brook, New York, 11794 (United States)
  4. National High Magnetic Laboratory, Tallahassee, Florida, 32310 (United States)
  5. Institut für Angewandte Physik, Mendelssohnstrasse 2, Braunschweig, D-38106 (Germany)
Publication Date:
OSTI Identifier:
22261954
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1566; Journal Issue: 1; Conference: ICPS 2012: 31. international conference on the physics of semiconductors, Zurich (Switzerland), 29 Jul - 3 Aug 2012; Other Information: (c) 2013 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; ABSORPTION; CYCLOTRON RESONANCE; ELECTRONS; GALLIUM ARSENIDES; L-S COUPLING; MAGNETIC FIELDS; MERCURY TELLURIDES; QUANTUM WELLS; SUBSTRATES; THICKNESS