Magnetic properties and phase stability of L 21 phase in Co 2 Mn (Ga1-x Zx) (Z=Si, Ge, and Sn) Heusler alloys

A. Okubo, Rie Umetsu, K. Kobayashi, Ryosuke Kainuma, K. Ishida

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17 Citations (Scopus)

Abstract

For the Co2 Mn (Ga1-x Zx) (Z=Si, Ge, and Sn) Heusler alloys, the L 21 /B2 order-disorder transition temperature Tt L 21/B2 the Curie temperature T C, and the saturation magnetization Ms were determined. The Tt L 21/B2 for all the systems linearly increases with increasing x. Although the Tt L 21/B2 was not determined in the high x region because of melting of alloys, those of Co2 MnGe and Co2 MnSn could be estimated by extrapolation from the quaternary data. The Ms at 4.2 K and the TC increase with x, and the Ms for all the systems is in good agreement with the Slater Pauling rule.

Original languageEnglish
Article number222507
JournalApplied Physics Letters
Volume96
Issue number22
DOIs
Publication statusPublished - 2010 May 31

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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