Direct current voltage induced by microwave signal in a ferromagnetic wire

A. Yamaguchi; K. Motoi; H. Miyajima; Y. Nakatani

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arXiv · 0710.2172

Direct current voltage induced by microwave signal in a ferromagnetic wire

A. Yamaguchi·K. Motoi·H. Miyajima·Y. Nakatani

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Abstract

Experimental results of rectification of a constant wave radio frequency (RF) current flowing in a single-layered ferromagnetic wire are presented. We show that a detailed external magnetic field dependence of the RF current induced a direct-current voltage spectrum. The mechanism of the rectification is discussed in a term of the spin transfer torque, and the rectification is closely related to resonant spin wave excitation with the assistant of the spin-polarized RF current. The micromagnetic simulation taking into account the spin transfer torque provides strong evidence which supports the generation of spin wave excitation by the RF current.

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A. Yamaguchi, K. Motoi, H. Miyajima, Y. Nakatani. 2007-10-11. Direct current voltage induced by microwave signal in a ferromagnetic wire. https://arxiv.org/abs/0710.2172

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