ADDITIONAL CONTRIBUTIONS OF ELECTRONIC-STRUCTURE TO ELASTIC ANOMALIES IN METALLIC SUPERLATTICES

被引:4
作者
CHANG, JL
STOTT, MJ
机构
[1] Department of Physics, Queen's University, Kingston
来源
PHYSICAL REVIEW B | 1993年 / 47卷 / 23期
关键词
D O I
10.1103/PhysRevB.47.15976
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In our previous paper [Phys. Rev. B 46, 10 423 (1992)], we studied the contribution of electronic structure to elastic anomalies in metallic superlattices, and focused on the sum of energy eigenvalues term in the Kohn-Sham formulation of the total energy. In this paper, we consider the effects of other terms in the total energy. These terms give contributions to the singularities in the elastic behavior of lower order than those due to the sum of energy eigenvalues obtained previously. This supports our earlier conclusion that, although electronic effects lead to singularities in the variation of elastic constants with modulation wavelength, the features are small and we expect them normally to make no significant contribution to the elastic properties of real materials.
引用
收藏
页码:15976 / 15979
页数:4
相关论文
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