Transport property and photoinduced relaxation effect in Sm0.5Ca0.5MnO3 film

被引：0

作者：

Jin, Kexin ^{[1
]}

Chen, Changle ^{[1
]}

Zhao, Shenggui ^{[2
]}

机构：

[1] Northwestern Polytechnical University

[2] Xi'an University of Science and Technology

来源：

Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering | 2008年 / 37卷 / 10期

基金：

中国国家自然科学基金;

关键词：

Manganites; Photoinduced relaxation; Rare earths; Transport property;

D O I：

10.1016/s1875-5372(09)60047-3

中图分类号：

学科分类号：

摘要：

Charge-ordering Sm0.5Ca0.5MnO3 film has been deposited on a (100)-LaAlO3 substrate by a RF magnetron sputtering method, and the X-ray diffraction analysis shows that the film has better epitaxial character. The film favors the semiconductor-type conduction with the increase of the temperature. The magnetic field and laser irradiation induce the reduction in the resistance of the film, which is attributed to the delocalization effect of manganites. The photoinduced relaxation effect of the film reveals that the resistance is exponentially dependent of the time and the time constant increases with increasing the temperature due to the growing thermal fluctuation.

引用

页码：1701 / 1704

页数：3

共 20 条

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