Detail publikačního výsledku

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.

Originální název

Direct observation of Oersted-field-induced magnetization dynamics in magnetic nanostripes

Anglický název

Direct observation of Oersted-field-induced magnetization dynamics in magnetic nanostripes

Druh

Článek recenzovaný mimo WoS a Scopus

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.

Anglický 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

X-PEEM, Magnetization, Oesterd Field, NiFe-CuCo

Klíčová slova v angličtině

X-PEEM, Magnetization, Oesterd Field, NiFe-CuCo

Autoři

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.

Rok RIV

2012

Vydáno

12.01.2011

ISSN

1098-0121

Periodikum

PHYSICAL REVIEW B

Svazek

83

Číslo

2

Stát

Spojené státy americké

Strany od

020406-1

Strany do

020406-4

Strany počet

4