6533b7d5fe1ef96bd1265200

RESEARCH PRODUCT

Domain wall motion in a diffusive weak ferromagnet

Faluke AikebaierTero T. Heikkilä

subject

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-technology

description

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.

yearjournalcountryeditionlanguage
2019-11-11Physical Review B
https://doi.org/10.1103/physrevb.101.155423