Rapid characterizing of ferromagnetic materials using spin rectification

Spin rectification is a powerful tool for dc electric detections of spin dynamics and electromagnetic waves. Technically, elaborately designed on-chip microwave devices are needed in order to realize that effect. In this letter, we propose a rapid characterizing approach based on spin rectification....

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Veröffentlicht in:Applied physics letters 2014-12, Vol.105 (26)
Hauptverfasser: Fan, Xiaolong, Wang, Wei, Wang, Yutian, Zhou, Hengan, Rao, Jinwei, Zhao, Xiaobing, Gao, Cunxu, Gui, Y. S., Hu, C.-M., Xue, Desheng
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Sprache:eng
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Zusammenfassung:Spin rectification is a powerful tool for dc electric detections of spin dynamics and electromagnetic waves. Technically, elaborately designed on-chip microwave devices are needed in order to realize that effect. In this letter, we propose a rapid characterizing approach based on spin rectification. By directly sending dynamic current into ferromagnetic films with stripe shape, resonant dc voltages can be detected along the longitudinal or transversal directions. As an example, Fe (010) films with precise crystalline structure and magnetic parameters were used to testify the reliability of such method. We investigated not only the dynamic parameters and the precise anisotropy constants of the Fe crystals but also the principle of spin rectification in this method.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4905358