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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
noncentrosymmetric 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 Mn-2-based Heusler compounds.
