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Dresselhaus effect in bulk wurtzite materials

Authors :
Chun-Nan Chen
Meng-En Lee
Wan-Tsang Wang
Hsiu-Fen Kao
Jih-Chen Chiang
C. L. Wu
H. C. Hsueh
Der-Jun Jang
Ikai Lo
Shiow-Fon Tsay
Ming-Hong Gau
Yia-Chung Chang
Source :
Applied Physics Letters. 91:082110
Publication Year :
2007
Publisher :
AIP Publishing, 2007.

Abstract

The spin-splitting energies of the conduction band for ideal wurtzite materials are calculated within the nearest-neighbor tight-binding method. It is found that ideal wurtzite bulk inversion asymmetry yields not only a spin-degenerate line (along the kz axis) but also a minimum-spin-splitting surface, which can be regarded as a spin-degenerate surface in the form of bkz2−k‖2=0 (b≈4) near the Γ point. This phenomenon is referred to as the Dresselhaus effect (defined as the cubic-in-k term) in bulk wurtzite materials because it generates a term γwz(bkz2−k‖2)(σxky−σykx) in the two-band k∙p Hamiltonian.

Details

ISSN :
10773118 and 00036951
Volume :
91
Database :
OpenAIRE
Journal :
Applied Physics Letters
Accession number :
edsair.doi...........92458309db706d52b747204404208084
Full Text :
https://doi.org/10.1063/1.2775038