PHASE-TRANSITION EFFECTS OF THE MG-CD SYSTEM ON THE POSITRON-ANNIHILATION PARAMETERS

被引：2

作者：

BELAIDI, A

WEST, RN

AOURAG, H

KHELIFA, B

机构：

[1] UNIV E ANGLIA,SCH MATH & PHYS,NORWICH NR4 7TJ,NORFOLK,ENGLAND

[2] UNIV ORAN ES SENIA,DEPT PHYS,OPT LAB,LA SENIA 31100,ALGERIA

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1990年 / 2卷 / 13期

关键词：

D O I：

10.1088/0953-8984/2/13/002

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Positron annihilation measurements made on Mg-Cd alloys are considered. Some pronounced effects at the order-disorder transition were found when the alloy composition was close to stoichiometry. No apparent effects of the order-disorder transformation were exhibited when the alloy was far from the stoichiometric composition. The measured mono-vacancy energies of the system at the stoichiometric composition showed a pronounced decrease when the alloy passed from an ordered to a disordered state.

引用

页码：2929 / 2933

页数：5

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