Giant Optical Anisotropy in M-plane GaN/AlGaN Quantum Wells due to Crystal-Field Effect

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题名:	Giant Optical Anisotropy in M-plane GaN/AlGaN Quantum Wells due to Crystal-Field Effect
作者:	Chen, Chun-Nan;Su, Wei-Long;Chang, Kuo-Ching;Chang, Sheng-Hsiung;Chiang, Jih-Chen;Lo, Ikai;Wang, Wan-Tsang;Kao, Hsiu-Fen;Lee, Meng-En
贡献者:	淡江大學物理學系
关键词:	M-plane;Crystal field;Optical anisotropy;Wurtzite;Valence band mixing
日期:	2008-09
上传时间:	2013-07-09 15:04:39 (UTC+8)
出版者:	Amsterdam: Elsevier BV * North-Holland
摘要:	The optical polarization of GaN/AlGaN wurtzite quantum wells in various orientations is studied using an arbitrarily-oriented [hkilhkil] Hamiltonian potential matrix. The optical matrix elements in the wurtzite quantum wells are calculated using the k⋅pk⋅p finite difference scheme. The results reveal the presence of giant in-plane optical anisotropy (polarized normal to [0001]) in the M-plane (i.e., the View the MathML source(101¯0)-oriented layer plane) GaN/Al0.2Ga0.8N quantum well, due to the positive crystal-field split energy effect (ΔCR>0ΔCR>0).
關聯:	Physics Letters. Section A: General, Atomic and Solid State Physics 372(37), pp.5915-5917
DOI:	10.1016/j.physleta.2008.07.048
显示于类别:	[物理學系暨研究所] 期刊論文

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