Direct observation of domain-wall configurations transformed by spin currents
Other Condensed Matter
2009-11-11 v2
Abstract
Direct observations of current-induced domain-wall propagation by spin-polarized scanning electron microscopy are reported. Current pulses move head-to-head as well as tail-to-tail walls in sub-micrometer Fe_{20}Ni_{80} wires in the direction of the electron flow, and a decay of the wall velocity with the number of injected current pulses is observed. High-resolution images of the domain walls reveal that the wall spin structure is transformed from a vortex to a transverse configuration with subsequent pulse injections. The change in spin structure is directly correlated with the decay of the velocity.
Keywords
Cite
@article{arxiv.cond-mat/0504427,
title = {Direct observation of domain-wall configurations transformed by spin currents},
author = {M. Klaui and P. -O. Jubert and R. Allenspach and A. Bischof and J. A. C. Bland and G. Faini and U. Rudiger and C. A. F. Vaz and L. Vila and C. Vouille},
journal= {arXiv preprint arXiv:cond-mat/0504427},
year = {2009}
}
Comments
5 pages, 3 figures