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Title: Energy loss rate of a charged particle in HgTe/(HgTe, CdTe) quantum wells

The energy loss rate (ELR) of a charged particle in a HgTe/(HgTe, CdTe) quantum well is investigated. We consider scattering of a charged particle by the bulk insulating states in this type of topological insulator. It is found that the ELR characteristics due to the intraband excitation have a linear energy dependence while those due to interband excitation depend on the energy exponentially. An interesting quantitative result is that for a large range of the incident energy, the mean inelastic scattering rate is around a few terahertz.
Authors:
;  [1] ;  [2] ; ;  [1] ;  [3]
  1. School of Physics, University of Wollongong, New South Wales 2522 (Australia)
  2. Institute for Superconducting and Electronic Materials, University of Wollongong, New South Wales 2522 (Australia)
  3. (Australia)
Publication Date:
OSTI Identifier:
22217798
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 103; Journal Issue: 19; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 36 MATERIALS SCIENCE; ACCIDENTS; CADMIUM TELLURIDES; CHARGED PARTICLES; DEEP INELASTIC SCATTERING; DIELECTRIC MATERIALS; ENERGY LOSSES; EXCITATION; MERCURY TELLURIDES; QUANTUM WELLS; SEMICONDUCTOR MATERIALS; TOPOLOGY