Kondo enhancement of current-induced spin accumulation in a quantum dot

Weak spin-orbit coupling produces very limited current-induced spin accumulation in nonmagnetic semiconductor nanostructures. We demonstrate a possibility to parametrically increase polarization using the Kondo effect. As model object we consider quantum dot side coupled wire, taking into account spin-dependent electron tunneling from wire dot. Using nonequilibrium Green functions, show that many-body correlations between and can at low temperatures by almost two orders of magnitude for moderate system parameters. The enhancement is related peak formation density states instability due strong Coulomb interaction. This effect may be useful electrically manipulate localized spins dots their applications.