TY - JOUR
T1 - Forced Volume Magnetostriction of Ferromagnetic and Cluster Glass Fe-Al Alloys
AU - Wada, Hirofumi
AU - Muraoka, Yoshitoshi
AU - Shiga, Masayuki
AU - Nakamura, Yoji
PY - 1985/1/1
Y1 - 1985/1/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=0022099957&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0022099957&partnerID=8YFLogxK
U2 - 10.1143/JPSJ.54.2700
DO - 10.1143/JPSJ.54.2700
M3 - Article
AN - SCOPUS:0022099957
VL - 54
SP - 2700
EP - 2707
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
SN - 0031-9015
IS - 7
ER -