Friedel oscillations in the force constants of metals

被引：5

作者：

Feibelman, PJ

机构：

[1] Sandia National Laboratories, Albuquerque

来源：

PHYSICAL REVIEW B | 1997年 / 55卷 / 14期

关键词：

CONSISTENT-SCREENING CALCULATION; PHONON-DISPERSION-CURVES; ALUMINUM; SURFACE; SCATTERING; PRINCIPLES; DYNAMICS;

D O I：

10.1103/PhysRevB.55.8821

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Analytic expressions are derived for the long-range falloff of the force constants of nearly-free-electron metals. Comparison with exact results shows that Friedel oscillations dominate the force constants of fee Al beyond the fourth-neighbor shell. Applications suggested include improving embedding theories of defect-related strain, improving methods for determining force constants empirically, and realistically assessing Friedel oscillation contributions to interadsorbate and interstep interactions at surfaces.

引用

页码：8821 / 8828

页数：8

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