Journal
APPLIED PHYSICS LETTERS
Volume 83, Issue 13, Pages 2617-2619Publisher
AMER INST PHYSICS
DOI: 10.1063/1.1578165
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The current-induced propagation of magnetic domain walls is studied in CoFe nanoconstrictions patterned by electron beam lithography. Propagation of the walls was confirmed by magnetic force microscopy imaging. The device geometry allows us to distinguish between various mechanisms of interaction between electric current and domain walls: a mechanism in which spin transfer associated with current traversing a domain wall dominates. As expected for such a mechanism the domain wall propagation occurs in the direction of electron current flow and has a current threshold of the order similar to10(11) A/m(2). (C) 2003 American Institute of Physics.
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