### Session X10: Focus Session: Spin Transport/Novel Magnetic Semiconductors

8:00 AM–10:12 AM, Friday, March 25, 2005
LACC Room: 153B

Chair: Paul Crowell, University of Minnesota

Abstract ID: BAPS.2005.MAR.X10.4

### Abstract: X10.00004 : Stochastic Variational description of interacting few-electron quantum dots with Rashba spin-orbit interaction

8:36 AM–8:48 AM

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#### Author:

Kalman Varga

We present a theoretical study of interacting electrons in a parabolically confined quantum dots in the presence of both magnetic field and Rashba spin-orbit interaction. The energy levels and wave functions are calculated by the stochastic variational method. The stochastic variational method, using a random trial and error search in the variational model space, provides a very accurate solution for these few-electron (N$<$10) systems. We will show how the competition between the electron- electron interaction, the magnetic field and the spin-orbit interaction effects the energy levels for different confining strengths. The presence of magnetic field enhances the possibility of spin polarization and the spin-orbit interaction leads to complicated dependence of the energy levels on the strength of the magnetic field. The effect of the electron- electron interaction on the spin transport properties will also be discussed.

To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2005.MAR.X10.4