Combinatorial investigation of magnetostriction in Fe-Ga and Fe-Ga-Al

Jason R. Hattrick-Simpers, Dwight Hunter, Corneliu M. Craciunescu, Kyu Sung Jang, Makoto Murakami, James Cullen, Manfred Wuttig, Ichiro Takeuchi, Samuel E. Lofland, Leonid Benderksy, Noble Woo, Robert Bruce Van Dover, Toshiya Takahashi, Yasubumi Furuya

Research output: Contribution to journalArticlepeer-review

33 Citations (Scopus)

Abstract

A high-throughput high-sensitivity optical technique for measuring magnetostriction of thin-film composition-spread samples has been developed. It determines the magnetostriction by measuring the induced deflection of micromachined cantilever unimorph samples. Magnetostriction measurements have been performed on as-deposited Fe-Ga and Fe-Ga-Al thin-film composition spreads. The thin-film Fe-Ga spreads display a similar compositional variation of magnetostriction as bulk. A previously undiscovered peak in magnetostriction at low Ga content was also observed and attributed to a maximum in the magnetocrystalline anisotropy. Magnetostrictive mapping of the Fe-Ga-Al ternary system reveals the possibility of substituting up to 8 at. % Al in Fe70 Ga30 without significant degradation of magnetostriction.

Original languageEnglish
Article number102507
JournalApplied Physics Letters
Volume93
Issue number10
DOIs
Publication statusPublished - 2008
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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