Control of spin in quantum dots with non-Fermi-liquid correlations.
Spin effects in the transport properties of a quantum dot with spin-charge separation are investigated. It is found that the nonlinear transport spectra are dominated by spin dynamics. Strong spin polarization effects are observed in a magnetic field. They can be controlled by varying gate and bias voltages. Complete polarization is stable against interactions. When polarization is not complete it is power law enhanced by non-Fermi-liquid effects.
Braggio
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Dipartimento di Fisica, INFM, Università di Genova, Via Dodecaneso 33, 16146 Genova, Italy.
Sassetti
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Kramer
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