Coulomb effects on the spin polarization of quantum ring
Abstract
We consider electrons in a circular nanoring of zero width, in magnetic field, and with Rashba spin-orbit interaction. We include the Coulomb interaction in the the ”exact diagonalization” manner. The Coulomb interaction has strong effects on the spin polarization which may be totally different than for noninteracting electrons. Our current results include up to four electrons, but this number can easily be increased.
Supporting agencies: This material was presented at the workshop Mathematical Challenges of Quantum Transport in Nano-Optoelectronic Systems, WIAS, Berlin, February 4-5, 2011 (OptoTrans2011). We wish to thank again to the organizers for this opportunity. We are also thankful to Catalina Marinescu, Marian Nit ¸a, and Sigurdur Erlingsson for valuable discussions. This research was supported by the Icelandic Research Fund.
About the Authors
A. Manolescu
School of Science and Engineering, Reykjavik University
Iceland
Iceland
Reykjavik
C. Daday
School of Science and Engineering, Reykjavik University; Science Institute, University of Iceland
Iceland
Iceland
Reykjavik
V. Gudmundsson
Science Institute, University of Iceland
Russian Federation
Russian Federation
Reykjavik
Review
For citations:
Manolescu A., Daday C., Gudmundsson V. Coulomb effects on the spin polarization of quantum ring. Nanosystems: Physics, Chemistry, Mathematics. 2011;2(3):29-36.
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