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

Journal Article · Mon Nov 04 00:00:00 EST 2013 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4829467· OSTI ID:22217798

Chen, Qinjun; Sin Ang, Yee ^[1]; Wang, Xiaolin ^[2]; Lewis, R. A.; Zhang, Chao ^[1]

---

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)

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.

• OSTI ID: 22217798
• Journal Information: Applied Physics Letters, Vol. 103, Issue 19; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

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