Coulomb Promotion of Spin-Dependent Tunnelling
Mesoscale and Nanoscale Physics
2009-11-11 v2
Abstract
We study transport of spin-polarized electrons through a magnetic single-electron transistor (SET) in the presence of an external magnetic field. Assuming the SET to have a nanometer size central island with a single electron level we find that the interplay on the island between coherent spin-flip dynamics and Coulomb interactions can make the Coulomb correlations promote rather than suppress the current through the device. We find the criteria for this new phenomenon -- Coulomb promotion of spin-dependent tunnelling -- to occur.
Keywords
Cite
@article{arxiv.cond-mat/0502243,
title = {Coulomb Promotion of Spin-Dependent Tunnelling},
author = {L. Y. Gorelik and S. I. Kulinich and R. I. Shekhter and M. Jonson and V. M. Vinokur},
journal= {arXiv preprint arXiv:cond-mat/0502243},
year = {2009}
}
Comments
4 pages, 3 figures; The new version has a slightly modified title, 2 more figures, and an extended analysis of the (same) results obtained