标题:Giant Magnetoresistance in La0.67Ca0.33MnO3/Alq3/Co Sandwiched-Structure Organic Spin Valves
作者:庞智勇[1];陈延学[1];刘甜甜[1];张云鹏[1];解士杰[1];颜世申[1];韩圣浩[1]
作者机构:[庞智勇;陈延学;刘甜甜;张云鹏;解士杰;颜世申;韩圣浩]School of Physics and Microelectronics, State Key Laboratory of Crystal Materials, Shandong Universi 更多
通讯作者:Han, SH(hansh@sdu.edu.cn)
通讯作者地址:[Han, SH]Shandong Univ, Sch Phys & Microelect, State Key Lab Crystal Mat, Jinan 250100, Peoples R China.
来源:中国物理快报:英文版
出版年:2006
卷:23
期:6
页码:1566-1569
关键词:磁致电阻;自旋阀;真空热蒸发法;半导体;
摘要:La0.67Ca0.33MnO3/Alq(3)/Co sandwiched-structure organic spin valves are fabricated by vacuum thermal evaporation method. A giant magnetoresistance (GMR) of 14% is observed at low temperature 100 K. At 30 K, the magnetoresistance can increase to 50%. The large GMR of the device is attributed to the high spin polarization and low conductivity of the La0.67Ca0.33MnO3 contact. The magnetoresistance Delta R/R and the coercive field of the Co electrode depend strongly on temperature. The large high-field magnetoresistance reported on La0.67Sr0.33MnO3/Alq(3)/Co organic spin valves [Nature 427 (2004) 821] is not observed in our La0.67Ca0.33MnO3/Alq(3)/Co organic spin valves.
收录类别:CSCD;SCOPUS;SCIE
WOS核心被引频次:15
Scopus被引频次:16
资源类型:期刊论文
原文链接:http://lib.cqvip.com/qk/84212X/200606/21876287.html
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