Magnetic order and electronic transport properties in the Mn${}_3$Al compound: the role of the structural state

Abstract

Electronic transport and magnetic properties of bulk and rapid melt quenched samples of the Mn${}_3$Al Heusler alloy were studied. A correlation between the magnetic and structural states was established. For a cast sample, there is no ferromagnetic moment, and the behavior of the magnetic susceptibility (break at low temperatures and the Curie-Weiss law with high values of the paramagnetic Curie temperature) indicates a frustrated antiferromagnetic state. At the same time, for a rapid melt quenched sample, a ferrimagnetic state is observed with a moment close to compensation. The results of measurements of the electrical resistivity and the Hall effect evidence as well in favor of the implementation of these magnetic states.

arXiv comment8 pages, pdf only

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Cited by in corpus (2)

• Magnetic States and Electronic Properties of Manganese-Based Intermetallic Compounds Mn${}_2$YAl and Mn${}_3$Z (Y = V, Cr, Fe, Co, Ni; Z = Al, Ge, Sn, Si, Pt)
• First principle study of electronic, magnetic and thermoelectric properties of Co${}_2$YPb (Y = Tc, Ti, Zr and Hf) full Heusler: Application to embedded automotive systems