Unusual current-voltage characteristics of single crystalline and bicrystalline La0.7Ca0.3MnO3 films

被引：1
作者：
Sawa, A
Schneider, CW [1 ]
Mannhart, J
机构：
[1] Univ Augsburg, Inst Phys, Ctr Elect Correlat & Magnetism, D-86135 Augsburg, Germany
[2] Natl Inst AIST, CERC, Tsukuba, Ibaraki 3058562, Japan
来源：
ANNALEN DER PHYSIK | 2004年 / 13卷 / 10期
关键词：
La0.7Ca0.3MnO3; current-voltage characteristics;
D O I：
10.1002/andp.200310100
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The current-voltage characteristics of single crystalline and bicrystalline La0.7Ca0.3MnO3 films were measured and analyzed. Several epitaxial films, as well as 45degrees [001]-tilt grain boundaries, display current-voltage characteristics which are asymmetric with respect to polarity reversal of the bias current. One epitaxial film has a polarity dependent resistance of similar to 340 kOmega and of similar to 670 kOmega in forward and in reverse direction, respectively. (C) 2004 WILEY-VCH verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码：595 / 599
页数：5
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