Raman study of the ordering in Sr(B′0.5Nb0.5)O3 compounds

被引：89

作者：

Ratheesh, R

Wöhlecke, M

Berge, B

Wahlbrink, T

Haeuseler, H

Rühl, E

Blachnik, R

Balan, P

Santha, N

Sebastian, MT

机构：

[1] Univ Osnabruck, Inst Chem, D-49069 Osnabruck, Germany

[2] Univ Osnabruck, Fachbereich Phys, D-49069 Osnabruck, Germany

[3] Univ Gesamthsch Siegen, D-57068 Siegen, Germany

[4] CSIR, Reg Res Lab, Thiruvananthapuram 695019, Kerala, India

来源：

JOURNAL OF APPLIED PHYSICS | 2000年 / 88卷 / 05期

关键词：

D O I：

10.1063/1.1287762

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Strontium based complex perovskites are potential candidates for microwave integrated circuit applications. In the present article, we report on Raman scattering studies of cubic and noncubic structures of Sr((B0.5Nb0.5)-Nb-')O-3 [B'=Ga, In, Y, La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, and Yb] based complex-perovskite materials for an improved understanding of structure-property relations. The spectral results are compared to some tantalum analogues of known crystal structure. The present study reveals a higher degree of ordering for the tantalum compounds compared to those of the niobium analogues. Vibrational studies show a correlation between the tolerance factor and symmetry of these materials. (C) 2000 American Institute of Physics. [S0021-8979(00)10817-5].

引用

页码：2813 / 2818

页数：6

共 31 条

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