1/f resistance noise in the large magnetoresistance manganites

被引：48

作者：

Alers, GB

Ramirez, AP

Jin, S

机构：

[1] Bell Laboratories, Lucent Technologies, Murray Hill, NJ 07974

来源：

APPLIED PHYSICS LETTERS | 1996年 / 68卷 / 25期

关键词：

D O I：

10.1063/1.115757

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Resistance noise has been measured in thin films of La0.6Y0.07Ca0.33MnO3 at the ferromagnetic metal to paramagnetic-insulator transition where a large magnetoresistance is observed, Fluctuations in resistance were found to have a 1/f power law form throughout the transition where fis frequency. This intrinsic 1/f noise is much larger than what is typical for metallic films and is consistent with the fluctuation-dissipation theorem and magnetization fluctuations in the ferromagnetic phase. The implications of this large low frequency noise for practical magnetoresistive devices will be addressed. (C) 1996 American Institute of Physics.

引用

页码：3644 / 3646

页数：3

共 11 条

[1]

Chikazumi S., 1964, Physics of Magnetism

[2] FLUCTUATION-DISSIPATION RELATION FOR GIANT MAGNETORESISTIVE 1/F NOISE [J].