Magnetic property and magnetoresistance in Fe/ITO multilayers

Giant magnetoresistance was found in DC magnetron sputtering Fe/ITO multilayers. The magnetic properties, electrical properties and magnetoresistance were investigated. A critical temperature is found around 50 K where the temperature dependence of resistivity and magnetoresistance ratio exhibit an...

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Veröffentlicht in:	Journal of magnetism and magnetic materials 2008-09, Vol.320 (17), p.2185-2189
Hauptverfasser:	Yu, Tian, Li, Xing-Qing, Li, Ding-Guo, Hao, Shen-Fen, Wang, Liang-Min, Zhang, Zhao-Gang, Wu, G.H., Zhang, X.X., Li, Qi-Ling, Chen, Peng
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: electronic structure, electrical, magnetic, and optical properties Exact sciences and technology Ferromagnetic metal–semiconductor Giant magnetoresistance Magnetic properties Magnetic properties and materials Magnetotransport phenomena, materials for magnetotransport Multilayer film Physics
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Beschreibung
Zusammenfassung:	Giant magnetoresistance was found in DC magnetron sputtering Fe/ITO multilayers. The magnetic properties, electrical properties and magnetoresistance were investigated. A critical temperature is found around 50 K where the temperature dependence of resistivity and magnetoresistance ratio exhibit an abruptly change. The temperature dependence of resistance is found to obey Mott's 1/4 law for low temperature. The max magnetoresistance ratio of 2.0% and 6.7% is found at room temperature and 12.5 K, respectively. The increase of magnetoresistance ratio at low temperature is due to the decrease of spin-mixing effect.
ISSN:	0304-8853
DOI:	10.1016/j.jmmm.2008.03.044