Publication detail
Direct observation of Oersted-field-induced magnetization dynamics in magnetic nanostripes
UHLÍŘ, V. PIZZINI, S. ROUGEMAILLE, N. CROS, V. JIMÉNEZ, E. RANNO, L. FRUCHART, O. URBÁNEK, M. GAUDIN, G. CAMARERO, J. TIEG, C. SIROTTI, F. WAGNER, E. VOGEL, J.
English title
Direct observation of Oersted-field-induced magnetization dynamics in magnetic nanostripes
Type
Peer-reviewed article not indexed in WoS or Scopus
Language
en
Original abstract
We have used time-resolved x-ray photoemission electron microscopy to investigate the magnetization dynamics induced by nanosecond current pulses in NiFe/Cu/Co nanostripes. A large tilt of the NiFe magnetization in the direction transverse to the stripe is observed during the pulses.We show that this effect cannot be quantitatively understood from the amplitude of the Oersted field and the shape anisotropy. High-frequency oscillations observed at the onset of the pulses are attributed to precessional motion of the NiFe magnetization about the effective field. We discuss the possible origins of the large magnetization tilt and the potential implications of the static and dynamic effects of the Oersted field on current-induced domain-wall motion in such stripes.
Keywords in English
X-PEEM, Magnetization, Oesterd Field, NiFe-CuCo
Released
2011-01-12
ISSN
1098-0121
Journal
PHYSICAL REVIEW B
Volume
83
Number
2
Pages from–to
020406-1–020406-4
Pages count
4