Low-energy charge dynamics of La0.7Ca0.3MnO3 thin films

被引：3
|
作者：
Kida, N
Hangyo, M
Tonouchi, M
机构：
[1] Osaka Univ, Res Ctr Superconduct Photon, Suita, Osaka 5650871, Japan
[2] Japan Sci & Technol Corp, Core Res Evolutional Sci & Technol, Suita, Osaka 5650871, Japan
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2001年 / 226卷 / PART I期
关键词：
magnetoresistance spectroscopy-optical transition metal oxides; thin films;
D O I：
10.1016/S0304-8853(00)00863-5
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Direct estimations of the low-energy (0.5-6meV) complex optical spectrum in La0.7Ca0.3MnO3 thin films have been investigated using terahertz time-domain spectroscopy. At low temperature. a clear Drude-term appears. Using the simple Drude model. we have estimated the scattering rate and the plasma frequency in the ferromagnetic metallic ground-state. Low-energy charge dynamics are briefly discussed on the basis of present results. (C) 2001 Published by Elsevier Science B.V.
引用
收藏
页码：818 / 820
页数：3
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