Exchange forces between domain wall and electric current in permalloy films of variable thickness
- 15 April 1988
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 63 (8) , 4276-4278
- https://doi.org/10.1063/1.340201
Abstract
Wall displacements are induced by large current pulses crossing a wall, in Ni81Fe19 films. In films of thickness ws‐d exchange forces generated by conduction electrons. The value ≂5×107 A cm−2 of the needed current density agrees with predictions of a theory based on s‐d exchange. In the case of cross‐tie walls in films with 35 nm <w<86 nm, the sense of wall motion does depend on the sense of the domain magnetizations. The force of the circumferential magnetic field of the current is probably important, here.This publication has 7 references indexed in Scilit:
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