Structure and Electrical Properties of La0.75Ca0.25MnO3 Polycrystalline Ceramic and Thin Films

被引：0

作者：

Xiang, Gao ^{[1
]}

Ji, Ma ^{[1
]}

Hui, Zhang ^{[1
]}

Theingi, Mya ^{[1
,2
]}

Yang Sheng'an ^{[1
]}

Chen Qingming ^{[1
]}

机构：

[1] Kunming Univ Sci & Technol, Kunming 650009, Peoples R China

[2] Univ Yangon, Yangon 11181, Myanmar

来源：

RARE METAL MATERIALS AND ENGINEERING | 2014年 / 43卷 / 10期

关键词：

La0.75Ca0.25MnO3; polycrystalline; thin film; pulsed laser deposition; temperature coefficient of resistance; TRANSPORT-PROPERTIES; MAGNETIC-PROPERTIES; LA0.7CA0.3MNO3; MAGNETORESISTANCE; THICKNESS;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

La0.75Ca0.25MnO3 (LCMO) polycrystalline ceramic was prepared by a sol-gel method, and the thin film was prepared on LaAlO3(100) single crystal substrates by pulsed laser deposition (PLD). The structure and growth properties of the film were investigated by X-ray diffraction (XRD). Crystalline quality of LCMO films was investigated by theta-scan rocking curves. The surface morphology of the film was studied by atom force microscopy (AFM) and the resistance-temperature (R-T) curves were measured using a conventional four-probe method. The experimental results show that the film is grown along c-axes and presents good crystalline quality. Large temperature coefficient of resistance of 10% at around 270 K is obtained.

引用

页码：2415 / 2418

页数：4

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