Publication detail
Current-induced domain wall motion and magnetization dynamics in CoFeB/Cu/Co nanostripes
UHLÍŘ, V. VOGEL, J. ROUGEMAILLE, N. FRUCHART, O. ISHAQUE, Z. CROS, V. CAMARERO, J. CEZAR, J. SIROTTI, F. PIZZINI, S.
English title
Current-induced domain wall motion and magnetization dynamics in CoFeB/Cu/Co nanostripes
Type
Peer-reviewed article not indexed in WoS or Scopus
Language
en
Original abstract
Current-induced domain wall motion and magnetization dynamics in the CoFeB layer of CoFeB/Cu/Co nanostripes were studied using photoemission electron microscopy combined with x-ray magnetic circular dichroism (XMCD-PEEM). Quasi-static measurements show that current-induced domain wall motion in the CoFeB layer is similar to the one observed in the NiFe layer of NiFe/Cu/Co trilayers, although the threshold current densities for domain wall depinning are lower. Time-resolved XMCD-PEEM measurements are used as an efficient probe of domain wall depinning statistics. They also reveal that, during the application of current pulses, the CoFeB magnetization rotates in the direction transverse to the nanostripe. The corresponding tilt angles have been quantified and compared to analytical and micromagnetic calculations, highlighting the influence of magnetostatic interactions between the two magnetic layers on the magnetization rotation.
Keywords in English
X-PEEM, Magnetization, Domain Wall, CoFeB/Cu/Co
Released
2011-12-15
ISSN
0953-8984
Journal
JOURNAL OF PHYSICS-CONDENSED MATTER
Volume
24
Number
2
Pages from–to
024213-1–024213-9
Pages count
9