Persistent current oscillations in electron-hole quantum dots
Abstract
A system of Kohn-Sham equations was solved self-consistently for the two-dimensional, spatially separated electrons and holes. A series of magic numbers were found for the total angular momentum of the electrons and holes in a strong magnetic field. The change of the angular momentum of the charge carriers was shown to lead to oscillations of the persistent current.
Supporting agencies: This work was supported by RFBR and Ministry of Education and Science of the Russian Federation.
About the Authors
A. A. Vasilchenko
Kuban State Technological University
Russian Federation
Russian Federation
Krasnodar
D. M. Tolkachev
Kuban State Technological University
Russian Federation
Russian Federation
Krasnodar
References
1. Castelano L. K., et. al. Control of the persistent currents in two interacting quantum rings through the Coulomb interaction and interring tunneling. Phys. Rev. B., 78, P. 195315 (2008).
2. Kleemans N.A.J.M. et. al. Oscillatory persistent currents in self-assembled quantum rings. Phys. Rev. Lett., 99, P. 146808 (2007).
3. Vasilchenko A.A., Yakovenko N.A. The electronic structure of a quantum dot in a strong magnetic field. Engineering Physics, 5, P. 2-4 (2008).
Review
For citations:
Vasilchenko A.A., Tolkachev D.M. Persistent current oscillations in electron-hole quantum dots. Nanosystems: Physics, Chemistry, Mathematics. 2013;4(2):236-240.
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