Magnetic Properties of Proton Irradiated Giant Magnetoresistance Multilayers

被引：1

作者：

Yin Cong ^{[1
,2
]}

Xie Dan ^{[1
,2
]}

Xu Jian-Long ^{[1
,2
]}

Ren Tian-Ling ^{[1
,2
]}

机构：

[1] Tsinghua Univ, Inst Microelect, Beijing 100084, Peoples R China

[2] Tsinghua Univ, Tsinghua Natl Lab Informat Sci & Technol, Beijing 100084, Peoples R China

来源：

JOURNAL OF INORGANIC MATERIALS | 2014年 / 29卷 / 03期

基金：

中国国家自然科学基金;

关键词：

giant magnetoresistance; proton irradiation; spin-related scattering; two spin-related conductivity channel; SPIN;

D O I：

10.3724/SP.J.1077.2013.13523

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The magnetic properties of proton irradiated CoFe/(CoFe/Cu)(10)/CoFe/Ta giant magnetoresistance multilayers (GMR-MLs) were investigated experimentally and theoretically. GMR-MLs were prepared by magnetron sputtering and exposed to 5 MeV proton beam with a series of radiation fluences and fluence rates. X-ray diffraction indicated that the crystal structures of CoFe/Cu were unaffected after irradiation. The saturation magnetization and intrinsic resistance increased monotonically with the increase of the radiation fluence and fluence rate. The value of MR. in the irradiated samples decreased slightly with the radiation fluence, which was mainly explained by the two spin-related conductivity channel model.

引用

页码：331 / 336

页数：6

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