DISORDER-INDUCED RAMAN-SCATTERING IN NON-CRYSTALLINE FILMS OF ALKALINE-EARTH HALIDES

被引：1

作者：

HARBACH, F

机构：

[1] Physikalisches Institut, Universität Münster

来源：

PHYSICA STATUS SOLIDI B-BASIC RESEARCH | 1979年 / 95卷 / 01期

关键词：

D O I：

10.1002/pssb.2220950122

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Above 50 cm−1 the Raman spectrum of quench‐condensed thin films of SrCl2, BaCl2, and BaFCl can be interpreted as a weighted one‐phonon density of states according to the theory of Shuker and Gammon. The weighting emphasizes those normal modes that are related to the Ramanactive F2g mode of the chlorine ions in a fluorite lattice: The maximum of the weighted density of states of non‐crystalline SrCl2 is situated at 180 cm−1, of BaCl2, and BaFCl at 160 cm−1. Above 50 cm−1 the depolarization ratio is approximately frequency independent and fluctuates around 0.5. Copyright © 1979 WILEY‐VCH Verlag GmbH & Co. KGaA

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页码：195 / 202

页数：8

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