Optical study in the charge-ordered phase of (Nd1-xSrx)MnO3

被引：1
|
作者：
Kuroe, H
Habu, I
Sakuta, A
Kuwahara, H
Sekine, T
机构：
[1] Sophia Univ, Dept Phys, Chiyoda Ku, Tokyo 1028551, Japan
[2] Japan Sci & Technol Corp, PRESTO, Chiyoda Ku, Tokyo 1020074, Japan
来源：
PHYSICA B-CONDENSED MATTER | 2003年 / 329卷
关键词：
charge and orbital orders; manganite; Raman scattering; Jahn-Teller effect;
D O I：
10.1016/S0921-4526(02)02592-9
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We report the Sr-concentration dependence of Raman spectra in (Nd1-xSrx)MnO3 (x similar to 1/2). In the charge-ordered phase of the x = 0.50 and 0.49 samples, several new Raman peaks appear. In the x = 0.48 sample, no new Raman peak is observed, indicating that the charge-ordered phase transition does not occur. We propose that the symmetry of the lattice in the charge-ordered phase is Pnmm. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：822 / 823
页数：2
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