Photo-induced effect of Mn site Fe doping in La0.67Sr0.33FexMn1-xO3 thin films

被引：4

作者：

Tang Jing ^{[1
]}

Chen Chang-Le ^{[1
]}

Jin Ke-Xin ^{[1
]}

Zhao Sheng-Gui ^{[1
]}

机构：

[1] Northwestern Polytech Univ, Shaanxi Key Lab Condensed Matter Struct & Propert, Xian 710072, Peoples R China

来源：

ACTA PHYSICA SINICA | 2008年 / 57卷 / 02期

关键词：

photo-induced; Fe doping; lattice effect;

D O I：

10.7498/aps.57.1166

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The compounds and films of La0.67Sr0.33FexMn1-xO3 (x = 0, 0.05, 0.10, 0.15) were prepared by the sol-gel technique and pulsed laser deposition method, respectively. The effect of Fe doping on the transport and photo-induced properties of La0.67Sr0.33FexMn1-xO3 film was investigated. Experimental results indicate that the Fe doping lowers the insulator-metal transition temperature, but increases the resistance. The photo-induced relative change in resistance increases initially with increasing temperature, then followed by a decrease. The maximum value of the relative change in resistance increases with increasing x, it reaching 38% when x = 0.15. The intriguing mechanism of photo-induced effect on the resistance was discussed in connection with lattice effect.

引用

页码：1166 / 1170

页数：5

共 21 条

[1] Magnetic properties and colossal magnetoresistance of La(Ca)MnO3 materials doped with Fe [J].