Detail publikace

Proudem-indukovaný pohyb doménových stěn v CoFeB/Cu/Co nanoproužcích

UHLÍŘ, V. VOGEL, J. ROUGEMAILLE, N. FRUCHART, O. ISHAQUE, Z. CROS, V. CAMARERO, J. CEZAR, J. SIROTTI, F. PIZZINI, S.

Český název

Proudem-indukovaný pohyb doménových stěn v CoFeB/Cu/Co nanoproužcích

Anglický název

Current-induced domain wall motion and magnetization dynamics in CoFeB/Cu/Co nanostripes

Typ

článek v časopise - ostatní, Jost

Jazyk

en

Originální abstrakt

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.

Český abstrakt

Článek se zabývá pohybem doménových stěn v CoFeB/Cu/Co nanoproužcích indukovaným elektrickým proudem.

Anglický abstrakt

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.

Klíčová slova česky

X-PEEM, Magnetizace, Doménová stěna, CoFeB/Cu/Co

Klíčová slova anglicky

X-PEEM, Magnetization, Domain Wall, CoFeB/Cu/Co

Rok RIV

2011

Vydáno

15.12.2011

ISSN

0953-8984

Ročník

24

Číslo

2

Strany od–do

024213-1–024213-9

Počet stran

9

BIBTEX


@article{BUT75970,
  author="Vojtěch {Uhlíř} and Jan {Vogel} and Nicolas {Rougemaille} and Olivier {Fruchart} and Zahid {Ishaque} and Vincent {Cros} and Julio {Camarero} and J. C. {Cezar} and F. {Sirotti} and Stefania {Pizzini},
  title="Current-induced domain wall motion and magnetization dynamics in CoFeB/Cu/Co nanostripes",
  year="2011",
  volume="24",
  number="2",
  month="December",
  pages="024213-1--024213-9",
  issn="0953-8984"
}