Search for half-metallic ferrimagnetism in V-based Heusler alloys Mn2VZ (Z = Al, Ga, In, Si, Ge, Sn)

2005/12/15 by K. Özdoğan, K Ozdogan, I. Galanakis +5 · 6 citations
Materials Science · Physics and Astronomy · #Heusler alloys: electronic and magnetic properties #MXene and MAX Phase Materials #ZnO doping and properties #cond-mat.mtrl-sci

paper · pdf · doi:10.1088/0953-8984/18/10/013

published as J. Phys.: Condens. Matter 18, 2905-2914 (2006) · 11 pages, 5 figures

arxiv created 2005/12/15 · openalex publication_date 2006/02/20 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/30

Abstract

Using a state-of-the-art full-potential electronic structure method within the local spin density approximation, we study the electronic and magnetic structure of Mn 2 V-based full Heusler alloys: Mn 2 VZ (Z = Al, Ga, In, Si, Ge and Sn). We show that small expansion of the calculated theoretical equilibrium lattice constants restores the half-metallic ferrimagnetism in these compounds. Moreover, a small degree of disorder between the V and Z atoms, although it induces some states within the gap, preserves the Slater–Pauling behaviour of the spin magnetic moments and the alloys keep a high degree of spin polarization at the Fermi level, opening the way for a half-metallic compensated ferrimagnet.

Citations

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