Structural properties and magnetic interactions in martensitic Ni-Mn-Sb alloys

Seda Aksoy, Mehmet Acet*, Eberhard F. Wassermann, Thorsten Krenke, Xavier Moya, Lluís Mañosa, Antoni Planes, Pascal P. Deen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

54 Citations (Scopus)

Abstract

We study the structural and magnetic properties of Heusler based Ni50Mn50-xSbx in the composition range 5.0≤x≤25.0. The cubic phase is preserved in the range 17.0≤x≤25.0, and the presence of martensitic transformations are found in alloys with x≤15.0. In a critical composition range 12.5≤x≤10.0, the magnetic coupling in both austenitic and martensitic phases is paramagnetic, however, the presence of antiferromagnetic short-range correlations is observed in both phases. We discuss the consequences of these correlations on the behavior of the magnetic moment with respect to electronic properties.

Original languageEnglish
Pages (from-to)2093-2109
Number of pages17
JournalPhilosophical Magazine
Volume89
Issue number22-24
DOIs
Publication statusPublished - Jan 2009
Externally publishedYes

Funding

This work was supported by Deutsche Forschungsgemeinschaft (No. SPP1239), CICyT (Spain) project MAT2007-61200, and the Institut Laue-Langevin, Grenoble.

FundersFunder number
Deutsche Forschungsgemeinschaft

    Keywords

    • Heusler alloys
    • Magnetic correlations
    • Magnetization
    • Neutron polarization analysis
    • Phase diagrams

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