RAMAN-ACTIVE MODES IN THE (CAXSR1-X)N+1TINO3N+1 LAYER PEROVSKITES

被引：7

作者：

GRAVES, PR

MYHRA, S

HAWKINS, K

WHITE, TJ

机构：

[1] GRIFFITH UNIV,DIV SCI & TECHNOL,NATHAN,QLD 4111,AUSTRALIA

[2] QUEENSLAND UNIV,CTR ELECTRON MICROSCOPE,ST LUCIA,QLD 4068,AUSTRALIA

来源：

PHYSICA C | 1991年 / 181卷 / 4-6期

关键词：

D O I：

10.1016/0921-4534(91)90110-K

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Raman investigations of the n = infinity, 3 layer perovskites over the full range of Ca <--> Sr substitution show that trends in the evolution of active modes are in accord with the known structural transitions. The spectra exhibit broad, second-order features and sharp first order peaks. Degenerate E(g) modes were observed to split into B2g and B3g components at the tetragonal/orthorhombic phase transitions. It is expected that these results will be relevant to modelling of the Raman scattering in high temperature superconductors with perovskite-related structures.

引用

页码：265 / 272

页数：8

共 18 条

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