Detail publikace
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.
Anglický název
Direct observation of Oersted-field-induced magnetization dynamics in magnetic nanostripes
Typ
Článek recenzovaný mimo WoS a Scopus
Jazyk
en
Originální abstrakt
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.
Klíčová slova anglicky
X-PEEM, Magnetization, Oesterd Field, NiFe-CuCo
Vydáno
2011-01-12
ISSN
1098-0121
Časopis
PHYSICAL REVIEW B
Ročník
83
Číslo
2
Strany od–do
020406-1–020406-4
Počet stran
4