STRUCTURAL DISORDER IN AGBR - REVERSE MONTE-CARLO ANALYSIS OF POWDER NEUTRON-DIFFRACTION DATA

被引：21

作者：

KEEN, DA ^{[1
]}

MCGREEVY, RL ^{[1
]}

HAYES, W ^{[1
]}

CLAUSEN, KN ^{[1
]}

机构：

[1] RISO NATL LAB,DK-4000 ROSKILDE,DENMARK

来源：

PHILOSOPHICAL MAGAZINE LETTERS | 1990年 / 61卷 / 06期

关键词：

D O I：

10.1080/09500839008206504

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The powder neutron-diffraction pattern of AgBr has been measured at 669 K and the structural disorder has been deduced by modelling both the diffuse and the Bragg scattering simultaneously using the reverse Monte Carlo technique. The density distribution of ions in the average unit cell shows considerable disorder of Ag+ions, with some Ag+ion density in the (5, 5) interstitial site. The density distribution has been used to calculate the diffuse neutron scattering expected from a single crystal and measurements on a single-crystal sample of AgBr at 669 K are found to be in good agreement. © 1990 Taylor & Francis Group, LLC.

引用

页码：349 / 357

页数：9

共 14 条

[1]

ABOAGYE JK, 1975, PHYS REV B, V11, P1654, DOI 10.1103/PhysRevB.11.1654

[2] A THEORETICAL AND EXPERIMENTAL-STUDY OF IONIC MOTION IN SILVER BROMIDE CRYSTALS [J].