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Title: Large spontaneous volume magnetostriction of Mn-Rh alloys

Abstract

The differential scanning calorimetry (DSC) curves and the temperature dependence of magnetic susceptibility for {gamma}-MnRh ordered alloys show a marked peak associated with the magnetic transition. The Neel temperature of Mn{sub 7} {sub 7}Rh{sub 2} {sub 3} and Mn{sub 7}{sub 5}Rh{sub 2} {sub 5} ordered alloys is determined to be about 830 and 850 K, respectively. The paramagnetic susceptibility increases with increasing temperature, showing an itinerant electron characteristics. The thermal expansion coefficient becomes small below the Neel temperature due to a large spontaneous volume magnetostriction, taking about 5 x 10{sup {minus}6}/K around room temperature. Such alloys with a small thermal expansion coefficient would induce some strain in multilayers because of the difference between the thermal expansion.

Authors:
; ; ;
Publication Date:
Research Org.:
Tohoku Univ., Sendai (JP)
OSTI Identifier:
20000815
Resource Type:
Journal Article
Journal Name:
IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers)
Additional Journal Information:
Journal Volume: 35; Journal Issue: 5Pt2; Conference: 1999 international magnetics conference (Intermag '99), Kyongju (KR), 05/18/1999--05/21/1999; Other Information: PBD: Sep 1999; Journal ID: ISSN 0018-9464
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ANTIFERROMAGNETIC MATERIALS; TEMPERATURE DEPENDENCE; MAGNETIC SUSCEPTIBILITY; MANGANESE ALLOYS; RHODIUM ALLOYS; NEEL TEMPERATURE; THERMAL EXPANSION; MAGNETOSTRICTION

Citation Formats

Yamauchi, R., Fukamichi, K., Yamauchi, H., and Sasao, K. Large spontaneous volume magnetostriction of Mn-Rh alloys. United States: N. p., 1999. Web. doi:10.1109/20.800669.
Yamauchi, R., Fukamichi, K., Yamauchi, H., & Sasao, K. Large spontaneous volume magnetostriction of Mn-Rh alloys. United States. doi:10.1109/20.800669.
Yamauchi, R., Fukamichi, K., Yamauchi, H., and Sasao, K. Wed . "Large spontaneous volume magnetostriction of Mn-Rh alloys". United States. doi:10.1109/20.800669.
@article{osti_20000815,
title = {Large spontaneous volume magnetostriction of Mn-Rh alloys},
author = {Yamauchi, R. and Fukamichi, K. and Yamauchi, H. and Sasao, K.},
abstractNote = {The differential scanning calorimetry (DSC) curves and the temperature dependence of magnetic susceptibility for {gamma}-MnRh ordered alloys show a marked peak associated with the magnetic transition. The Neel temperature of Mn{sub 7} {sub 7}Rh{sub 2} {sub 3} and Mn{sub 7}{sub 5}Rh{sub 2} {sub 5} ordered alloys is determined to be about 830 and 850 K, respectively. The paramagnetic susceptibility increases with increasing temperature, showing an itinerant electron characteristics. The thermal expansion coefficient becomes small below the Neel temperature due to a large spontaneous volume magnetostriction, taking about 5 x 10{sup {minus}6}/K around room temperature. Such alloys with a small thermal expansion coefficient would induce some strain in multilayers because of the difference between the thermal expansion.},
doi = {10.1109/20.800669},
journal = {IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers)},
issn = {0018-9464},
number = 5Pt2,
volume = 35,
place = {United States},
year = {1999},
month = {9}
}