抄録
Microwave-assisted magnetization reversal in a 0.36 μm wide Ni80 Fe20 wire with a natural ferromagnetic resonance frequency of 8.42 GHz was investigated experimentally. Magnetization switching could be detected from a discontinuous change in the ferromagnetic resonance frequency of the wire. The application of microwaves with a frequency of 7.5 GHz and a power of 19.2 dBm reduced the switching field from 217 to 142 Oe. While high-power microwave-assisted switching reduced the dc switching field, it substantially broadened the switching field distribution. This is mainly attributed to inhomogeneous resonance properties of the nucleation sites in the wire.
本文言語 | English |
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論文番号 | 122505 |
ジャーナル | Applied Physics Letters |
巻 | 91 |
号 | 12 |
DOI | |
出版ステータス | Published - 2007 |
外部発表 | はい |
ASJC Scopus subject areas
- 物理学および天文学(その他)