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Switching a spin valve back and forth by current-induced domain wall motion

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7 Author(s)
Grollier, J. ; Unité Mixte de Physique CNRS/THALES, Domaine de Corbeville, 91404 Orsayand Université Paris-Sud, 91405 Orsay, France ; Boulenc, P. ; Cros, V. ; Hamzic, A.
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We have studied the current-induced displacement of a domain wall (DW) in the permalloy (Py) layer of a Co/Cu/Py spin valve structure at zero and very small applied field. The displacement is in opposite direction for opposite dc currents, and the current density required to move DW is only of the order of 106A/cm2. For H=3 Oe, a back and forth DW motion between two stable positions is observed. We also discuss the effect of an applied field on the DW motion. © 2003 American Institute of Physics.

Published in:

Applied Physics Letters  (Volume:83 ,  Issue: 3 )

Date of Publication:

Jul 2003

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