Ferromagnetic resonance in soft-magnetic metallic glass nanowire and microwire

Koji Nakayama; Tomoaki Chiba; Susumu Tsukimoto; Yoshihiko Yokoyama; Toshiyuki Shima; Shin Yabukami

doi:10.1063/1.4902147

Ferromagnetic resonance in soft-magnetic metallic glass nanowire and microwire

Koji Nakayama, Tomoaki Chiba, Susumu Tsukimoto, Yoshihiko Yokoyama, Toshiyuki Shima, Shin Yabukami

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

14 Citations (Scopus)

Abstract

We report the magneto-impedance measurements in soft-magnetic Co₃₆Fe₃₆B₁₉Si₅Nb₄ metallic glass nano/micro wires produced by gas atomization. The wire impedance varies with external magnetic fields and the impedance peak position depends on the frequency, indicating ferromagnetic resonance. The postulation of anisotropy directions in ferromagnetic resonance allows to the determination of magnetic anisotropies in the wire. By decreasing the wire diameter, the reduction of magnetic anisotropy is observed.

Original language	English
Article number	202403
Journal	Applied Physics Letters
Volume	105
Issue number	20
DOIs	https://doi.org/10.1063/1.4902147
Publication status	Published - 2014 Nov 17

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.4902147

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AU - Nakayama, Koji

AU - Chiba, Tomoaki

AU - Tsukimoto, Susumu

AU - Yokoyama, Yoshihiko

AU - Shima, Toshiyuki

AU - Yabukami, Shin

PY - 2014/11/17

Y1 - 2014/11/17

N2 - We report the magneto-impedance measurements in soft-magnetic Co36Fe36B19Si5Nb4 metallic glass nano/micro wires produced by gas atomization. The wire impedance varies with external magnetic fields and the impedance peak position depends on the frequency, indicating ferromagnetic resonance. The postulation of anisotropy directions in ferromagnetic resonance allows to the determination of magnetic anisotropies in the wire. By decreasing the wire diameter, the reduction of magnetic anisotropy is observed.

AB - We report the magneto-impedance measurements in soft-magnetic Co36Fe36B19Si5Nb4 metallic glass nano/micro wires produced by gas atomization. The wire impedance varies with external magnetic fields and the impedance peak position depends on the frequency, indicating ferromagnetic resonance. The postulation of anisotropy directions in ferromagnetic resonance allows to the determination of magnetic anisotropies in the wire. By decreasing the wire diameter, the reduction of magnetic anisotropy is observed.

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Ferromagnetic resonance in soft-magnetic metallic glass nanowire and microwire

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