Anisotropic thermoelectric effect in helimagnetic tunnel junctions

Abstract

Thermoelectric transport across normal-metal/helical-multiferroic/ferromagnetic heterojunctions is theoretically investigated. We find a anisotropic charge and spin thermopower with a $C_{2v}$ symmetry. The angular dependence on the magnetization orientation of the ferromagnetic layer is substantiated by a phenomenological theory based on the symmetry of the effective spin-orbit interaction induced by the topology of the spiral magnetic order in the multiferroic barrier.

References in corpus (13)

• Spin Seebeck insulator
• Observation of the Spin-Seebeck Effect in a Ferromagnetic Semiconductor
• Universal Scaling Behavior of Anomalous Hall Effect and Anomalous Nernst Effect in Itinerant Ferromagnets
• Thermally driven spin injection from a ferromagnet into a non-magnetic metal
• Correlation between spin helicity and electric polarization vector in quantum-spin chain magnet LiCu${}_2$O${}_2$
• Tunneling anisotropic magnetoresistance and spin-orbit coupling in Fe/GaAs/Au tunnel junctions
• Thermo-spin effects in a quantum dot connected to ferromagnetic leads
• Thermoelectric Effects in Magnetic Nanostructures
• Anisotropic tunneling magnetoresistance and tunneling anisotropic magnetoresistance: spin-orbit coupling in magnetic tunnel junctions
• Multiferroic oxides-based flash-memory and spin-field-effect transistor
• Tunneling anisotropic magnetoresistance in Fe/GaAs/Au junctions: orbital effects
• Tunneling Anisotropic Magnetoresistance of Helimagnet Tunnel Junctions
• Thermoelectric effect of multiferroic oxide interfaces

Cited by in corpus (3)

• Magnetic control of spin-orbit fields: a first-principles study of Fe/GaAs junctions
• Helical multiferroics for electric field controlled quantum information processing
• Tunneling Anisotropic Thermopower and Seebeck Effects in Magnetic Tunnel Junctions