Forced Volume Magnetostriction of Ferromagnetic and Cluster Glass Fe-Al Alloys

Hirofumi Wada, Yoshitoshi Muraoka, Masayuki Shiga, Yoji Nakamura

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The forced volume magnetostriction of Fe-Al alloys in the concentration range from 15 to 36.5 at%Al has been measured at 4.2 K, 77 K and room temperature. The results were analyzed on the basis of a phenomenological theory of magneto-volume effects, where the volume change is classified into two contributions, the 3d band polarization and the volume dependence of exchange interaction between local moments. It is shown that the band polarization effect is dominant for volume magnetostrictions in cluster glass alloys (Al>30at%) as well as in ferromagnetic alloys (Al<30at%). The analysis gives a rough estimate of the intrinsic band susceptibility, which is strongly enhanced around the critical concentration for the collapse of a long range ferromagnetic order.

Original languageEnglish
Pages (from-to)2700-2707
Number of pages8
Journaljournal of the physical society of japan
Volume54
Issue number7
DOIs
Publication statusPublished - Jan 1 1985
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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