Magnetic property and magnetoresistance in Fe/ITO multilayers
- 作者：Tian Yu ; Xing-Qing Li ; Ding-Guo Li ; Shen-Fen Hao ; Liang-Min Wang ; Zhao-Gang Zhang ; G.H. Wu ; X.X. Zhang ; Qi-Ling Li ; Peng Chen
- 关键词：Giant magnetoresistance ; Multilayer film ; Ferromagnetic metal– ; semiconductor ; Magnetic properties
- 刊名：Journal of Magnetism and Magnetic Materials
- 出版年：2008
- 期刊代码：31_03048853
- 类别：ph
- 出版时间：September 2008
- 卷：320
- 期：17
- 页码：2185-2189
- 文件大小：315 K
摘要
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.