Phase diagram of magnetic domain walls in spin valve nano-stripes

Phase diagram of magnetic domain walls in spin valve nano-stripes

Článek WoS

We investigate numerically the transverse versus vortex phase diagram of head-to-head domain walls in Co/Cu/Py spin valve nano-stripes (Py: permalloy), in which the Co layer is mostly single domain while the Py layer hosts the domain wall. The range of stability of the transverse wall is shifted towards larger thickness compared to single Py layers, due to a magnetostatic screening effect between the two layers. An approached analytical scaling law is derived, which reproduces faithfully the phase diagram

We investigate numerically the transverse versus vortex phase diagram of head-to-head domain walls in Co/Cu/Py spin valve nano-stripes (Py: permalloy), in which the Co layer is mostly single domain while the Py layer hosts the domain wall. The range of stability of the transverse wall is shifted towards larger thickness compared to single Py layers, due to a magnetostatic screening effect between the two layers. An approached analytical scaling law is derived, which reproduces faithfully the phase diagram

cobalt, copper, interface magnetism, magnetic domain walls, magnetic transitions, magnetostatics, nanostructured materials, Permalloy, spin valves

cobalt, copper, interface magnetism, magnetic domain walls, magnetic transitions, magnetostatics, nanostructured materials, Permalloy, spin valves

ROUGEMAILLE, N.; UHLÍŘ, V.; FRUCHART, O.; PIZZINI, S.; VOGEL, J.; TOUSSAINT, J.

2013

23.04.2012

0003-6951

APPLIED PHYSICS LETTERS

100

17

Spojené státy americké

172404-1

172404-4

4