Thermally induced spin-transfer torques in superconductor/ferromagnet bilayers
I. V. Bobkova, A. M. Bobkov, Wolfgang Belzig
Abstract
Thermally induced magnetization dynamics is currently a flourishing field of research due to its potential application in information technology. We study the paradigmatic system of a magnetic domain wall in a thermal gradient which is interacting with an adjacent superconductor. The spin-transfer torques arising in this system due to the combined action of the giant thermoelectric effect and the creation of equal-spin pairs in the superconductor are large enough to give rise to high domain wall velocities ${10}^{3}$ times larger than previously predicted.
Topics & Concepts
Condensed matter physicsSuperconductivityFerromagnetismSpin (aerodynamics)MagnetizationField (mathematics)Thermoelectric effectPhysicsTorqueDomain (mathematical analysis)ThermalDomain wall (magnetism)FlourishingMaterials scienceMagnetic fieldQuantum mechanicsThermodynamicsPure mathematicsMathematicsPsychotherapistMathematical analysisPsychologyPhysics of Superconductivity and MagnetismMagnetic properties of thin filmsQuantum and electron transport phenomena