100,000% ballistic magnetoresistance in stable Ni nanocontacts at room temperature

被引:79
作者
Hua, SZ [1 ]
Chopra, HD [1 ]
机构
[1] SUNY Buffalo, Dept Mech & Aerosp Engn, Thin Films & Nanosynth Lab, Mat Program, Buffalo, NY 14260 USA
关键词
D O I
10.1103/PhysRevB.67.060401
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
This study reports reproducible, ten thousand to hundred thousand percent ballistic magnetoresistance (BMR) effect in stable electrodeposited Ni nanocontacts at room temperature and in fields of only a few hundred oersteds. Experimental observation of Ni whiskers and nanoconstrictions within these whiskers formed during electrodeposition points towards a picture of multiple ballistic, quasi-ballistic, and diffusive conductors acting in series and parallel to give rise to the observed large BMR effect, instead of a single, monolithic nanocontact.
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页数:4
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