Tunnelling of Polarized Electrons in Magnetic Wires

Abstract

We investigate the tunnelling between an electronic gas with two different velocities $V_{\uparrow }\ne V_{\downarrow }$ and a regular metal. We find that at the interface between the two systems that the tunnelling conductance for spin up and spin down are different. As a result a partly polarized gas (``magnetic wire'') is obtained. This result is caused by the e-e interaction, $g_2^{\prime \prime }-g_1^{\prime \prime }\ne 0$, which in the presence of $V_{\uparrow }\ne V_{\downarrow }$ gives rise to two different tunnelling exponents.

9 pages

Cited by in corpus (4)

• Renormalization of impurity scattering in one-dimensional interacting electron systems in magnetic field
• Polarized Magnetic Wire Induced by Tunneling Through a Magnetic Impurity
• Spin-charge mixing effects on resonant tunneling in a polarized Luttinger Liquid
• Spin-filtering by field dependent resonant tunneling