Magneto-electric and thermo-magneto-electric effects in ferromagnetic transition-metal alloys from first-principles

Abstract

The electric and thermo-magneto-electric transport of the prototypical ferromagnetic transition-metal alloy system fcc-Co${}_x$Pd${}_{1-x}$ has been investigated on the basis of Kubo's linear response formalism. The results for the full electric conductivity tensor allow to discuss the spin-orbit induced anisotropic magneto-resistance (AMR) and the anomalous Hall effect (AHE). These are complemented by results for the corresponding thermo-magneto-electric transport properties anisotropy of the Seebeck effect (ASE) and anomalous Nernst effect (ANE). The relation between the respective response coefficients is discussed with the underlying electronic structure calculated relativistically within the Korringa-Kohn-Rostoker coherent potential approximation (KKR-CPA) band structure method for disordered alloys.

5 pages, 6 figures

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• First-principles study of the anisotropic magneto-Peltier effect
• Interplay of growth mode and thermally induced spin accumulation in epitaxial Al/Co${}_2$TiSi/Al and Al/Co${}_2$TiGe/Al contacts
• The inverse thermal spin-orbit torque and the relation of the Dzyaloshinskii-Moriya interaction to ground-state energy currents
• Magnon scattering in the transport coefficients of CoFe alloys
• Tunneling Anisotropic Thermopower and Seebeck Effects in Magnetic Tunnel Junctions
• High-field magnetoresistance of microcrystalline and nanocrystalline Ni metal at 3 K and 300 K
• Transport Coefficients of Dirac Ferromagnet: Effects of Vertex Corrections