Publication detail
Current-induced motion and pinning of domain walls in spin-valve nanowires studied by XMCD-PEEM
UHLÍŘ, V. PIZZINI, S. ROUGEMAILLE, N. NOVOTNÝ, J. CROS, V. JIMÉNEZ, E. FAINI, G. HEYNE, L. SIROTTI, F. TIEG, C. BENDOUNAN, A. MACCHEROZZI, F. BELKHOU, R. GROLLIER, J. ANANE, A. VOGEL, J.
English title
Current-induced motion and pinning of domain walls in spin-valve nanowires studied by XMCD-PEEM
Type
Peer-reviewed article not indexed in WoS or Scopus
Language
en
Original abstract
Very large average velocities, up to 600 m/s, have been found for domain-wall motion driven by 3-ns-long pulses of electric current in zero magnetic field in the NiFe layer of 200-nm-wide NiFe/Cu/Co nanowires. For longer pulses, the domain-wall motion is strongly hindered by pinning potentials. Dipolar interactions between the NiFe and Co layers caused by anisotropy inhomogeneities have been identified as the most important among the different potential sources of DW pinning. The domain-wall velocities increase with current density, but a substantial drop is observed at current densities above 4.1011 A/m2.
Keywords in English
Domaim wall; Spintronics, Spin-valve, XMCD-PEEM
Released
2010-06-11
ISSN
1098-0121
Volume
81
Number
22
Pages from–to
224418-1–224418-10
Pages count
10