Observation of the spin Seebeck effect in epitaxial Fe3O4 thin films
Observation of the spin Seebeck effect in epitaxial Fe3O4 thin films
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DOI：
10.1063/1.4793486
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发表时间：
2013-02-18
影响因子：
4
通讯作者：
Ibarra, M. R.
中科院分区：
文献类型：
--
作者：
Ramos, R.;Kikkawa, T.;Ibarra, M. R.
本文报道了磁性薄膜中自旋塞贝克效应的实验观察。在高于Verwey转变的温度下观察到的信号是来自反常能斯特（ANE）和自旋塞贝克（SSE）效应的贡献。由于Fe_3 O_4和Pt层之间的电阻率差异，Fe_3 O_4层的ANE对SSE的贡献可以忽略不计。低于Verwey转变，SSE是免费的ANE的铁磁层，它也被发现占主导地位的ANE由于磁性邻近效应的Pt层。(C)2013年美国物理学会。[http：//dx.doi.org/10.1063/1.4793486]
We report the experimental observation of the spin Seebeck effect in magnetite thin films. The signal observed at temperatures above the Verwey transition is a contribution from both the anomalous Nernst (ANE) and spin Seebeck (SSE) effects. The contribution from the ANE of the Fe3O4 layer to the SSE is found to be negligible due to the resistivity difference between Fe3O4 and Pt layers. Below the Verwey transition, the SSE is free from the ANE of the ferromagnetic layer and it is also found to dominate over the ANE due to magnetic proximity effect on the Pt layer. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4793486]