COMMENSURATE AND INCOMMENSURATE ORDERING TENDENCIES IN THE TERNARY FCC CU-NI-ZN SYSTEM

被引：34

作者：

ALTHOFF, JD ^{[1
]}

JOHNSON, DD ^{[1
]}

PINSKI, FJ ^{[1
]}

机构：

[1] UNIV CINCINNATI,DEPT PHYS,CINCINNATI,OH 45221

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.74.138

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We show that Fermi-surface (FS) nesting drives both the incommensurate and commensurate ordering tendencies of the fcc ternary Cu-Ni-Zn system. Surprisingly, commensurate order persists over a wide range of composition, despite its origins. For Cu2NiZn, we discuss how FS nesting and the other effects of alloying lead to ordering tendencies consistent with the experimentally observed order-disorder transformations. All calculations are based on a first-principles theory of the atomic short-range order in alloys with an arbitrary number of components. © 1994 The American Physical Society.

引用

页码：138 / 141

页数：4

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