Search results for "Domain wall"

showing 2 items of 102 documents

Domain wall motion in a diffusive weak ferromagnet

2019

We study the domain wall motion in a disordered weak ferromagnet, induced by injecting a spin current from a strong ferromagnet. Starting from the spin diffusion equation describing the spin accumulation in the weak ferromagnet, we calculate the force and torque acting on the domain wall. We also study the ensuing domain wall dynamics, and suggest a possible measurement method for detecting the domain wall motion via measuring the additional resistance.

magneetitFOS: Physical sciencesMotion (geometry)02 engineering and technologySpin current01 natural sciencestiiviin aineen fysiikkaMesoscale and Nanoscale Physics (cond-mat.mes-hall)0103 physical sciencesTorqueelectrical spin injectionmagnetismi010306 general physicsSpin-½Physicsspin accumulationMeasurement methodspin currentCondensed Matter - Mesoscale and Nanoscale PhysicsCondensed matter physicsdomain wallsspin transfer torque021001 nanoscience & nanotechnologyferromagnetismspin diffusionspin relaxationDomain wall (magnetism)FerromagnetismSpin diffusionCondensed Matter::Strongly Correlated Electrons0210 nano-technologyPhysical Review B
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Magnetoelectric effects in superconductor/ferromagnet bilayers

2018

We demonstrate that the hybrid structures consisting of a superconducting layer with an adjacent spin-textured ferromagnet demonstrate the variety of equilibrium magnetoelectric effects originating from coupling between the conduction electron spin and superconducting current. By deriving and solving the generalized Usadel equation which takes into account the spin-filtering effect we find that a supercurrent generates spin polarization in the superconducting film which is non-coplanar with the local ferromagnetic moment. The inverse magnetoelectric effect in such structures is shown to result in the spontaneous phase difference across the magnetic topological defects such as a domain wall …

magneettiset ominaisuudetmagneetitMagnetoelectric effectFOS: Physical sciences01 natural sciences010305 fluids & plasmasTopological defectsuprajohteetSuperconductivity (cond-mat.supr-con)Condensed Matter::SuperconductivityMesoscale and Nanoscale Physics (cond-mat.mes-hall)0103 physical sciences010306 general physicsSpin-½PhysicsSuperconductivityCondensed Matter - Mesoscale and Nanoscale PhysicsCondensed matter physicsSpin polarizationCondensed Matter - SuperconductivitySupercurrent3. Good healthDomain wall (magnetism)FerromagnetismCondensed Matter::Strongly Correlated Electronsohutkalvot
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