Neutron diffraction and RMC study of CN- orientations in Na (CN)x Br1-x

被引：1

作者：

Rycroft, S ^{[1
]}

Chahid, A ^{[1
]}

McGreevy, RL ^{[1
]}

机构：

[1] Studsvik Neutron Res Lab, S-61182 Nykoping, Sweden

来源：

PHYSICA B | 2000年 / 276卷

关键词：

computer modelling; disordered materials; diffuse scattering; molecular systems;

D O I：

10.1016/S0921-4526(99)01467-2

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Order-disorder transformations in the mixed system Na(CN)(x)Br1-x have been studied using the Reverse Monte Carlo technique to model the total structure factors (Bragg and diffuse scattering) measured by neutron powder diffraction. As the crystals are cooled they exhibit a phase transition from cubic to orthorhombic, the temperature of which decreases with x until a cut off at x approximate to 0.7. Results for x = 0.75 are presented here. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：284 / 285

页数：2