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Electron-electron interactions in a one-dimensional quantum wire spin filter

P. Devillard, A. Crepieux, K. I. Imura, T. Martin

cond-mat.mes-hallarXiv:cond-mat/0501145

Abstract

The combined presence of a Rashba and a Zeeman effect in a ballistic one-dimensional conductor generates a spin pseudogap and the possibility to propagate a beam with well defined spin orientation. Without interactions transmission through a barrier gives a relatively well polarized beam. Using renormalization group arguments, we examine how electron-electron interactions may affect the transmission coefficient and the polarization of the outgoing beam.

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