SURFACE SEGREGATION IN CUXNI1-X ALLOY

被引：15

作者：

LIN, HF

WANG, CL

CHENG, YC

机构：

[1] Natl Taiwan Univ, Taipei, Taiwan, Natl Taiwan Univ, Taipei, Taiwan

来源：

SOLID STATE COMMUNICATIONS | 1986年 / 59卷 / 04期

关键词：

CRYSTALS - Physical Properties;

D O I：

10.1016/0038-1098(86)90591-0

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The tight-binding Hartree Hamiltonian and a mixed Bethe-lattice approximation is used to study the surface segregation phenomenon of Cu//xNi//1// minus //x alloy. It is found that Ni atoms segregate to the surface layer in the Cu-rich range (0. 75 less than x less than 1). This is in contrast with previous theories concentrations. However, the present theory agrees with the recent experimental observation of a crossover at x equals 0. 84 by Hashizume et al.

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页码：253 / 256

页数：4

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