DC electrical response and impedance change induced by a microwave signal in a patterned ferromagnetic wire - art. no. 703607 - Research Database, The University of York

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DC electrical response and impedance change induced by a microwave signal in a patterned ferromagnetic wire - art. no. 703607

Research output: Contribution to journal › Article › peer-review

Author(s)

A. Yamaguchi
K. Motoi
A. Hirohata
N. Higashio
H. Miyajima

Department/unit(s)

Electronic Engineering

Publication details

Journal	SECOND INTERNATION CONFERENCE ON IMAGE AND GRAPHICS, PTS 1 AND 2
Date	Published - 2008
Volume	7036
Number of pages	15
Pages (from-to)	3607-3607
Original language	English

Abstract

We investigate the impedance and direct-current (DC) electric response induced by ferromagnetic resonance (FMR) in a single layered ferromagnetic wire. The impedance difference in the FMR state rectifies part of the radio-frequency (RF) current and induces the DC voltage. The impedance measurement using a vector network analyzer reveals the characteristics of the rectifying effect. A phenomenological model interpreting the impedance changes derived from the magnetization precession is proposed. The rectifying effect lies in the ability to demodulate the RF signal for wireless mobile communications.

Research areas

rectification, ferromagnetic resonance, impedance, ferromagnetic wire, SPIN-WAVE RESONANCE, MAGNETIC TUNNEL-JUNCTIONS, BOUNDARY-CONDITIONS, TRANSFER-TORQUE, FILMS, FIELD, PERMALLOY, GUIDES

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