We analyze the electronic properties of quantum wires with a Z-like profile within four-band models for the valence band of a semiconductor of diamond and zinc blende type. Group-theoretical considerations show that the valence-band structure is doubly degenerate only when the linear k-terms (coming e.g. from the bulk crystal inversion asymmetry) are neglected. The considerations apply to the more general case of a profile containing a 2D center of inversion.
Title
The band structure of Z-like quantum wires
Published in
Physica Status Solidi B-Basic Research
Volume
234
Issue
1
Pages
329-337
Date
2002
ISSN
0370-1972
Note
Swiss Fed Inst Technol, Inst Quantum Elect, EPFL, CH-1015 Lausanne, Switzerland. Swiss Fed Inst Technol, Photon Sch Basic Sci, EPFL, CH-1015 Lausanne, Switzerland. Dupertuis, MA, Swiss Fed Inst Technol, Inst Quantum Elect, EPFL, CH-1015 Lausanne, Switzerland.
ISI Document Delivery No.: 621QL
Cited Reference Count: 15
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Record creation date
2007-08-31
