Magnetic properties of Co50-xNixMn 25Al25 alloys with B2 structure

A. Okubo, X. Xu, R. Y. Umetsu, T. Kanomata, K. Ishida, R. Kainuma

研究成果: Article査読

4 被引用数 (Scopus)


Magnetic properties of the B2 phase in Co50-xNi xMn25Al25 alloys were investigated. Spontaneous magnetization Ms measured at 4.2 K increases linearly with increasing x in the region of x ≤ 30 in accordance with following the generalized Slater-Pauling (GSP) line. However, Ms abruptly decreases with increasing x and deviates from the GSP line in the Ni-rich region of x > 30, suggesting a drastic change in the density of states at the Fermi energy. The Curie temperature TC decreases monotonically with increasing x and significantly decreases in the region of x > 30. Antiferromagnetic evidence is clearly observed at x > 45, and the Néel temperature TN increases with increasing x, in reaching the value of the B2 phase in Ni2MnAl.

ジャーナルJournal of Applied Physics
出版ステータスPublished - 2011 4 1

ASJC Scopus subject areas

  • 物理学および天文学(全般)


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