Frequency dependence of microwave-assisted switching in CoCrPt granular perpendicular media

Nobuaki Kikuchi, Kyohei Shimada, Takehito Shimatsu, Satoshi Okamoto, Osamu Kitakami

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

The microwave-assisted switching properties of a CoCrPt–TiO2 granular perpendicular medium are investigated by detecting the anomalous Hall effect. We improved the device structure to be able to generate a linearly polarized microwave field of 950 Oe without a significant increase in temperature. Coercivity decreases linearly with increasing microwave frequency and the microwave assistance effect is most enhanced by the application of microwaves of 18 GHz frequency with a coercivity reduction ratio of 55%.

Original languageEnglish
Article number09TE02
JournalJapanese journal of applied physics
Volume57
Issue number9
DOIs
Publication statusPublished - 2018 Sep

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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