Anisotropy of thermoelectric properties in La2/3Ca1/3MnO3 thin films studied by laser-induced transient voltages

被引：102
|
作者：
Habermeier, HU [1 ]
Li, XH
Zhang, PX
Leibold, B
机构：
[1] Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany
[2] Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China
[3] Chinese Acad Sci, Ctr Condensed Matter Phys, Beijing 100080, Peoples R China
[4] Yunnan Polytech Univ, Inst Lasers, Kunming 650051, Peoples R China
来源：
SOLID STATE COMMUNICATIONS | 1999年 / 110卷 / 09期
关键词：
magnetically ordered materials; thin films; crystal structure and symmetry; thermodynamic properties;
D O I：
10.1016/S0038-1098(99)00111-8
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Calcium doped LaMnO3 thin films deposited on vicinal cut SrTiO3 substrates exhibit unexpected large laser-induced voltages at room temperature, in remarkable analogy to those measured for intrinsically anisotropic YBa2Cu3O7-x thin films. The experimental data for La2/3Ca1/3MnO3 thin films are consistent with the description of a generation of thermoelectric fields caused by off-diagonal elements of the Seebeck tensor. The results suggest that the anisotropy of the Seebeck tensor is due to long range co-operative Jahn-Teller distortions. (C) 1999 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：473 / 478
页数：6
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