Lattice mismatch consequences for the intrinsic characteristics in the dilute (Zn, Se)O alloys

被引:13
作者
Belabbes, A. [1 ]
Zaoui, A.
Ferhat, M.
机构
[1] Univ Sci & Technol Oran, LEPM, Dept Phys, Oran, Algeria
[2] Univ Sci & Technol Lille, Polytech Lille, LML UMR 8107, F-59655 Villeneuve Dascq, France
[3] Uppsala Univ, Dept Phys, Condensed Matter Theory Grp, S-75121 Uppsala, Sweden
关键词
D O I
10.1088/0953-8984/19/45/456212
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
By means of ab initio pseudopotential calculations, we investigate the effect of lattice mismatch on the intrinsic properties in the dilute ZnOxSe1- x alloys. The substitution of isovalent elements having a large electronegativity and size mismatch with respect to the replaced atoms leads to strong nonlinear effects in the properties of the host crystal. From a detailed analysis of the bowing, we notice that the relative contribution of the three components ( volume, charge exchange, and strain) shows that the most significant effect is caused by the structural relaxation.
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页数:6
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