Electrical properties of La0.7-xPrxSr0.3MnO3 perovskite

被引：47

作者：

Guo, ZB ^{[1
]}

Zhang, JR ^{[1
]}

Zhang, N ^{[1
]}

Ding, WP ^{[1
]}

Huang, H ^{[1
]}

Du, YW ^{[1
]}

机构：

[1] NANJING UNIV, DEPT PHYS, NANJING 210093, PEOPLES R CHINA

来源：

APPLIED PHYSICS LETTERS | 1997年 / 70卷 / 14期

关键词：

CA-MN-O; GIANT MAGNETORESISTANCE; FILMS; STATE;

D O I：

10.1063/1.118724

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We present the electrical properties of polycrystalline La0.7-xPrxSr0.3MnO3 in which the average ionic radius of the A site [r(A)] is systematically varied while keeping the carrier concentration fixed. Below the Curie temperature T-c, the spin-disorder scattering process has been regarded to play an important role in the resistivity. With decreasing [r(A)], the structure transition from rhombohedral to orthorhombic phase accompanied with the sharp increase in resistivity at T-c and the increase of the activation energies has been observed. (C) 1997 American Institute of Physics.

引用

页码：1897 / 1899

页数：3

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