Dresselhaus effect in bulk wurtzite materials

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题名:	Dresselhaus effect in bulk wurtzite materials
作者:	Wang, Wan Tsang;Wu, Chung Lin;Tsay, Shiow Fon;Gau, Ming Hong;Lo, Ikai;Kao, Hsiu Fen;Jang, Der Jun;Chiang, Jih Chen;Lee, Meng En;Chang, Yi Tsung;Chen, Chun Nan;Hsueh, Hung Chung
贡献者:	淡江大學物理學系
关键词:	Conduction bands;Hamiltonians;Spin dynamics;Dresselhaus effect;Spin degenerate line;Spin splitting energies;Wurtzite;Zinc compounds
日期:	2007-08
上传时间:	2013-05-31 11:31:00 (UTC+8)
出版者:	College Park: American Institute of Physics
摘要:	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.
關聯:	Applied Physics Letters 91(8), 082110(3 pages)
DOI:	10.1063/1.2775038
显示于类别:	[物理學系暨研究所] 期刊論文

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