Magnetization switching provoked by spin-injection is studied in Ni nanowires of various size and morphology. The response of the magnetization to the spin-injection is studied as a function of the amplitude of the current, the temperature, and the symmetry of the interfaces. The amplitude of the response of the magnetization to spin-injection is a decreasing function of the temperature, does not depend on the current sign, and occurs only in the case of asymmetric interfaces. It is shown that the spin-injection does not act on small magnetic inhomogeneities inside the layer. Some consequences in terms of longitudinal spin-transfer are discussed.
@article{arxiv.cond-mat/0307763,
title = {Transfer of magnetization by spin injection between both interfaces of a Ni nanowire},
author = {J. -E. Wegrowe and M. Dubey and T. Wade and H. -J. Drouhin and M. Konczykowski},
journal= {arXiv preprint arXiv:cond-mat/0307763},
year = {2009}
}