INTERFERENCE BETWEEN ONE- AND MULTIPHONON PROCESSES IN SCATTERING OF NEUTRONS AND X RAYS BY CRYSTALS

被引：34

作者：

COWLEY, RA

SVENSSON, EC

BUYERS, WJL

机构：

[1] Chalk River Nuclear Laboratories, Atomic Energy of Canada Limited, Chalk River, Ont.

来源：

PHYSICAL REVIEW LETTERS | 1969年 / 23卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.23.525

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We show that the intensity of x-ray and neutron scattering by anharmonic crystals is markedly affected by the interference between one- and multiphonon scattering processes. The previously unexplained intensity modulation in the x-ray diffuse scattering from NaCl is shown by calculations to be largely of this origin. We have also observed the effect of the interference in neutron inelastic scattering from KBr; calculations give quantitative agreement with the experimental results. © 1969 The American Physical Society.

引用

页码：525 / &