6533b86cfe1ef96bd12c8ce8
RESEARCH PRODUCT
Current-induced fingering instability in magnetic domain walls
Andrejs CebersJavier CurialeAristide LemaîtreJon GorchonM. PlappVincent JeudyN. Verniersubject
Materials scienceMagnetic domainCiencias FísicasINSTABILITYFOS: Physical sciencesINGENIERÍAS Y TECNOLOGÍAS02 engineering and technologySPINTRONIC01 natural sciencesInstabilityPhysics::Fluid Dynamics//purl.org/becyt/ford/1 [https]//purl.org/becyt/ford/2.10 [https]0103 physical sciencesPerpendicular[PHYS.COND]Physics [physics]/Condensed Matter [cond-mat]010306 general physicsNanotecnologíaCondensed Matter - Materials ScienceCondensed matter physicsSpin-transfer torqueMaterials Science (cond-mat.mtrl-sci)//purl.org/becyt/ford/1.3 [https]Nano-materiales021001 nanoscience & nanotechnologyCondensed Matter PhysicsElectronic Optical and Magnetic MaterialsAstronomíaDomain wall (magnetism)Ferromagnetism//purl.org/becyt/ford/2 [https]Current (fluid)0210 nano-technologyCurrent densityCIENCIAS NATURALES Y EXACTASdescription
The shape instability of magnetic domain walls under current is investigated in a ferromagnetic (Ga,Mn)(As,P) film with perpendicular anisotropy. Domain wall motion is driven by the spin transfer torque mechanism. A current density gradient is found either to stabilize domains with walls perpendicular to current lines or to produce finger-like patterns, depending on the domain wall motion direction. The instability mechanism is shown to result from the non-adiabatic contribution of the spin transfer torque mechanism.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2015-08-01 |