THz spectroscopic evidence for a charge-density-wave formation in a charge-ordered manganite Pr0.7Ca0.3MnO3

被引：3
|
作者：
Kida, N
Tonouchi, M
机构：
[1] Osaka Univ, Res Ctr Superconduct Photon, Suita, Osaka 5650871, Japan
[2] JST, CREST, Suita, Osaka 5650871, Japan
来源：
PHYSICA B-CONDENSED MATTER | 2003年 / 329卷
关键词：
THz time-domain spectroscopy; Pr0.7Ca0.3MnO3; charge-density-wave; collective excitation mode;
D O I：
10.1016/S0921-4526(02)02540-1
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Low-energy (0.5-4 meV) charge dynamics of the typical charge-ordered manganite Pr0.7Ca0.3MnO3 have been investigated directly by using THz time-domain spectroscopy. We observed a finite peak structure in the complex optical spectrum around 2-3 meV well below the charge gap similar to300 meV and attributed it to the collective excitation mode arising from the charge-density-wave condensate. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：842 / 843
页数：2
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