Extra-Large Magnetoresistance in Fe/In2 O3 Granular Film
HUANG Bao-Xin, LIU Yi-Hua, WANG Jun-Hua, ZHANG Lin,ZHANG Ru-Zhen, ZHANG Lian-Sheng, MEI Liang-Mo
Department of Physics and State Key Laboratory of Crystal
Materials, Shandong University, Ji’nan 250100
Extra-Large Magnetoresistance in Fe/In2 O3 Granular Film
HUANG Bao-Xin;LIU Yi-Hua;WANG Jun-Hua;ZHANG Lin,ZHANG Ru-Zhen;ZHANG Lian-Sheng;MEI Liang-Mo
Department of Physics and State Key Laboratory of Crystal
Materials, Shandong University, Ji’nan 250100
关键词 ：
75.70.Pa ,
75.70.Ak ,
75.30.Hx ,
73.50.-h
Abstract ： Nanogranular Fe0.35 /(In2 O3 )0.65 film with complex magnetic structure were prepared by the rf sputtering method. An extra-large magnetoresistance up to 506% was obtained at 2.2 K, which is two orders of magnitude larger than that obtained at room temperature. This is related to the interaction with the impurities influencing the local magnetization, which is quite different from spin-dependent tunneling effect at room temperature. The interspacing Fe atoms dispersed in the In2 O3 matrix play an important role in the transportation properties of carriers at low temperature.
Key words ：
75.70.Pa
75.70.Ak
75.30.Hx
73.50.-h
出版日期: 2002-07-01
:
75.70.Pa
75.70.Ak
(Magnetic properties of monolayers and thin films)
75.30.Hx
(Magnetic impurity interactions)
73.50.-h
(Electronic transport phenomena in thin films)
引用本文:
HUANG Bao-Xin;LIU Yi-Hua;WANG Jun-Hua;ZHANG Lin;ZHANG Ru-Zhen;ZHANG Lian-Sheng;MEI Liang-Mo. Extra-Large Magnetoresistance in Fe/In2 O3 Granular Film[J]. 中国物理快报, 2002, 19(7): 1004-1006.
2 O3 Granular Film. Chin. Phys. Lett., 2002, 19(7): 1004-1006.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2002/V19/I7/1004
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