Majority-spin nonquasiparticle states in half-metallic ferrimagnetMn2VAl

2009/02/18 by L. Chioncel, Enrico Arrigoni, E. Arrigoni +2
Materials Science · Physics and Astronomy · #Ferrimagnetism #Heusler alloys: electronic and magnetic properties #Magnetic and transport properties of perovskites and related materials #Physics #Quantum mechanics #Rare-earth and actinide compounds #cond-mat.mtrl-sci #cond-mat.str-el

paper · pdf · doi:10.1103/physrevb.79.125123

published as Phys. Rev. B 79 235123 (2009) · 6pages, 4 fig. accepted in PRB

arxiv created 2009/02/18 · openalex publication_date 2009/03/30 · arxiv updated 2014/04/15 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

The density of non-quasiparticle states in the ferrimagnetic full-Heusler Mn₂VAl alloy is calculated from first principles upon appropriate inclusion of correlations. In contrast to most half-metallic compounds, this material displays an energy gap in the majority-spin spectrum. For this situation, non-quasiparticle states are located below the Fermi level, and should be detectable by spin-polarized photoemission. This constitutes an attractive opportunity to study many-body effects in spintronic-related materials.

Citations

• Pseudo-half-metallicity in the double perovskite Sr2CrReO6 from density-functional calculations
• Search for half-metallic ferrimagnetism in V-based Heusler alloys Mn2VZ (Z = Al, Ga, In, Si, Ge, Sn)
• Experimental Observation and Theoretical Description of the Pure Fano Effect in the Valence-Band Photoemission of Ferromagnets
• Subgap transport in ferromagnet-superconductor junctions due to magnon-assisted Andreev reflection
• Half-Metallic Ferromagnetism Induced by Dynamic Electron Correlations in VAs
• Magnon-assisted transport and thermopower in ferromagnet–normal-metal tunnel junctions
• Giant magnetothermopower of magnon-assisted transport in ferromagnetic tunnel junctions
• Spintronics: Fundamentals and applications
• Half-metallic ferrimagnetism inMn2VAl
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• Electronic structure and magnetic properties of correlated metals