Total energy differences between SiC polytypes revisited

被引:104
作者
Limpijumnong, S [1 ]
Lambrecht, WRL [1 ]
机构
[1] Case Western Reserve Univ, Dept Phys, Cleveland, OH 44106 USA
来源
PHYSICAL REVIEW B | 1998年 / 57卷 / 19期
关键词
D O I
10.1103/PhysRevB.57.12017
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The total energy differences between various SiC polytypes (3C, 6H, 4H, 2H, 15R, and 9R) were calculated using the full-potential linear muffin-tin orbital method using the Perdew-Wang generalized gradient approximation [I. P. Perdew, in Electronic Structure of Solids '91, edited by P. Ziesche and H. Eschrich (Akademie-Verlag, Berlin, 1991), p. 11] to the exchange-correlation functional in the density-functional method. Numerical convergence versus k-point sampling and basis-set completeness are demonstrated to be better than 0.5 meV/atom. The parameters of several generalized anisotropic next-nearest-neighbor Ising models are extracted and their significance and consequences for epitaxial growth are discussed. [S0163-1829(98)01019-4].
引用
收藏
页码:12017 / 12022
页数:6
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