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Effects of Zn additions to highly magnetoelastic FeGa alloys

TitleEffects of Zn additions to highly magnetoelastic FeGa alloys
Publication TypeJournal Article
Year of Publication2015
AuthorsLograsso, TA, Jones, NJ, Schlagel, DL, Petculescu, G, Wun-Fogle, M, Restorff, JB, Clark, AE, Hathaway, KB
JournalJournal of Applied Physics
Date Published05
Type of ArticleArticle
ISBN Number0021-8979
Accession NumberWOS:000354984100525
Keywordsga, Magnetostriction

s hypothesis, elemental additions with lower-than-Ga valence are needed. Of the possible candidates, only Be and Zn have sufficient solubility. Single crystals of bcc Fe-Ga-Zn have been grown with up to 4.6 at.% Zn in a Bridgman furnace under elevated pressure (15 bars) in order to overcome the high vapor pressure of Zn and obtain homogeneous crystals. Single-crystal measurements of magnetostriction and elastic constants allow for the direct comparison of the magnetoelastic coupling constants of Fe-Ga-Zn with those of other magnetoelastic alloys in its class. The partial substitution of Ga with Zn yields values for the magnetoelastic coupling factor, -b(1), comparable to those of the binary Fe-Ga alloy. (C) 2015 AIP Publishing LLC.

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