Extra-Large Magnetoresistance in Fe/In<suB>2</suB>O<suB>3</suB> Granular Film

Chin. Phys. Lett.

2002, Vol. 19

Issue (7): 1004-1006 DOI:

Original Articles

Extra-Large Magnetoresistance in Fe/In₂O₃ 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

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HUANG Bao-Xin, LIU Yi-Hua, WANG Jun-Hua et al 2002 Chin. Phys. Lett. 19 1004-1006

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Abstract Nanogranular Fe_0.35/(In₂O₃)_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 In₂O₃ matrix play an important role in the transportation properties of carriers at low temperature.

Keywords: 75.70.Pa 75.70.Ak 75.30.Hx 73.50.-h

Published: 01 July 2002

PACS:	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)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2002/V19/I7/01004

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	HUANG Bao-Xin
	LIU Yi-Hua
	WANG Jun-Hua
	ZHANG Lin
	ZHANG Ru-Zhen
	ZHANG Lian-Sheng
	MEI Liang-Mo

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