Majority-spin non-quasiparticle states in half-metallic ferrimagnet Mn${}_2$VAl

Abstract

The density of non-quasiparticle states in the ferrimagnetic full-Heuslers Mn${}_2$VAl 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 opens a new way to study many-body effects in spintronic-related materials.

6pages, 4 fig. accepted in PRB

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Cited by in corpus (16)

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• Ferrimagnetism and disorder in epitaxial Mn(2-x)Co(x)VAl thin films
• GW study of the half-metallic Heusler compounds Co2MnSi and Co2FeSi
• Effect of the double-counting functional on the electronic and magnetic properties of half-metallic magnets using the GGA+U method
• Electronic structure and magnetic properties of metallocene multiple-decker sandwich nanowires
• Half-metallicity in NiMnSb: a Variational Cluster Approach with ab-initio parameters
• Half-metallicity and magnetism in the Co${}_2$MnAl/CoMnVAl heterostructure
• Negative spin polarization of Mn2VGa probed by tunnel magnetoresistance
• Half-metallic Ferrimagnetism Driven by Coulomb Enhanced Spin-Orbit Coupling in PdCrO3
• Absence of halfmetallicity in defect-free Cr, Mn-delta-doped Digital Magnetic Heterostructures
• Spin-polarized ballistic conduction through correlated Au-NiMnSb-Au heterostructures
• Rare-earth impurities in Co${}_2$MnSi: an opportunity to improve Half-Metallicity at finite temperatures
• Effects of Strong Interactions in a Half Metallic Magnet: a Determinant Quantum Monte Carlo Study
• Non-quasiparticle states in a half-metallic ferromagnet with antiferromagnetic $s-d(f)$ interaction
• Spectral properties of heterostructures containing half-metallic ferromagnets in the presence of local many-body correlations
• First-principles study of magnetic and spin-dependent transport properties of Mn2VZ (Z = Al, Ga) with negative spin polarization using a disordered local moment approach at finite temperatures