Guidelines for understanding cubic manganese-rich Heusler compounds

Abstract

Manganese-rich Heusler compounds are attracting much interest in the context of spin transfer torque and rare-earth free hard magnets. Here we give a comprehensive overview of the magnetic properties of non-centrosymmetric cubic Mn${}_2$-based Heusler materials, which are characterized by an antiparallel coupling of magnetic moments on Mn atoms. Such a ferrimagnetic order leads to the emergence of new properties that are absent in ferromagnetic centrosymmetric Heusler structures. In terms of the band structure calculations, we explain the formation of this magnetic order and the Curie temperatures. This overview is intended to establish guidelines for a basic understanding of magnetism in Mn2 -based Heusler compounds.

References in corpus (4)

• Calculated electronic and magnetic properties of the half-metallic, transition metal based Heusler compounds
• Role of the conduction electrons in mediating exchange interactions in Heusler alloys
• Exchange interactions and Curie temperatures in Mn2CoZ compounds
• Ab initio prediction of ferrimagnetism, exchange interactions and Curie temperatures in Mn2TiZ Heusler compounds

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• Thermophysical and magnetic properties of p- and n-type Ti-Ni-Sn based half-Heusler alloys