LONG-WAVELENGTH OPTICAL PHONONS IN ZRSE3

被引：23

作者：

ZWICK, A

RENUCCI, MA

机构：

[1] Laboratoire de Physique des Solides, C.N.R.S, Université Paul-Sabatier, Toulouse

来源：

PHYSICA STATUS SOLIDI B-BASIC RESEARCH | 1979年 / 96卷 / 02期

关键词：

D O I：

10.1002/pssb.2220960232

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Zone‐center optical phonons in ZrSe3, the prototype of the IVB‐trichalcogenides family, are investigated by Raman scattering for several incident and scattered light polarizations, and by infrared reflectance measurements. These layered compounds are characterized by isolated chains along the b‐monoclinic axis formed by the linear stacking of distorted trigonal prisms with Se atoms at the corners and Zr atoms in the center. Nine modes are found among the twenty‐ones theoretically predicted. Phonons assignment is made by a group theoretical analysis of the crystal structure, using the correlation method which relates single chain modes to crystal modes as the interchain coupling is truned on. Copyright © 1979 WILEY‐VCH Verlag GmbH & Co. KGaA

引用

页码：757 / 767

页数：11

共 18 条

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