Theory of magnon-mediated tunnel magneto-Seebeck effect

Abstract

The tunnel magneto-Seebeck effect is the dependence of the thermopower of magnetic tunnel junctions on the magnetic configuration. It is conventionally interpreted in terms of a thermoelectric generalization of the tunnel magnetoresistance. Here, we investigate the heat-driven electron transport in these junctions associated with electron-magnon scattering, using stochastic Landau-Lifshitz phenomenology and quantum kinetic theory. Our findings challenge the widely accepted single-electron picture of the tunneling thermopower in magnetic junctions.

References in corpus (6)

• Theory of magnon-driven spin Seebeck effect
• Nonlocal Thermoelectric Effects and Nonlocal Onsager Relations in a Three-Terminal Proximity-Coupled Superconductor-Ferromagnet Device
• Spin caloritronics in magnetic tunnel junctions: Ab initio studies
• Tunnel-barrier-enhanced dc voltage signals induced by magnetization dynamics in magnetic tunnel junctions
• Charge pumping in magnetic tunnel junctions: Scattering theory
• Local thermomagnonic torques in two-fluid spin dynamics