Absolute spin valve effect

Details Absolute spin valve effect Absolute spin valve effect

2004-01-09

arxiv.org/abs/cond-mat/0401137v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 5 eps figures

Scientific paper

We study charge transport in a two dimensional hybrid systems consisting of nonmagnetic two dimensional electron gas with spin-orbit interaction sandwiched between a Ferromagnetic lead and a normal metallic lead (FM/2DEG/NM). An {\it absolute spin valve effect} is shown to exist. It is shown that the conductance of such a hybrid system changes upon rotating the magnetization such that it always stays perpendicular to the current direction. An ASVC ({\it Absolute Spin Valve Coefficient}) is defined to quantify this effect and its dependence on various parameter is studied.

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