Tailoring the magnetic properties of mechanically hardest Co-Fe-Ta-B glassy thin films

Parmanand Sharma, Hisamichi Kimura, Akihisa Inoue

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

In the present paper, we focus on the unique magnetic properties, such as spin reorientation transition (SRT) and Curie temperature (TC), of mechanically hardest Co-Fe-Ta-B glassy alloy in thin film form. The effect of dilution with Zr on the magnetic properties of this alloy is also reported. The SRT temperature is found to be reversible and can be tailored to any desirable value from 100 K to above room temperature by controlling the film thickness or by different methods of film deposition. In addition, while maintaining the ability to tailor SRT, we can also vary the TC of these films from 450 K down to helium temperatures by appropriate dilution of the alloy with Zr. All the Zr added Co-Fe-Ta-B alloy thin films are structurally amorphous, but magnetically versatile and tunable. Our results indicate that the amorphousglassy magnetic thin film materials are quite promising for versatile magnetic manipulations and device development.

Original languageEnglish
Article number09N502
JournalJournal of Applied Physics
Volume101
Issue number9
DOIs
Publication statusPublished - 2007 May 21
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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