Title of article :
Electronic Properties of a Concentric Triple Quantum Nanoring
Author/Authors :
Salehani, H.K Plasma Physics Research Center - Science and Research Branch - Islamic Azad University , Esmaeilzadeh, M Department of Physics - Iran University of Science and Technology , Shakouri, Kh Department of Physics - Iran University of Science and Technology , Abolhassani, M.R Plasma Physics Research Center - Science and Research Branch - Islamic Azad University , Faizabadi, E Department of Physics - Iran University of Science and Technology , Majlesara, M.H Department of Physics - Faculty of Science - Tarbiat Moallem University
Abstract :
In this paper, we study the electronic properties of a concentric triple quantum ring using exact diagonalization
technique. The energy spectra and magnetization for a single electron and two electrons, in the presence of an
applied magnetic field, are calculated and discussed. It is shown that, for two-interacting electrons, the period
of Aharonov-Bohm oscillations decreases to the half of that for non-interacting electrons which shows the
fractional Aharonov-Bohm oscillations for interacting electrons. It is found that the spin-singlet state for two
electrons is more stable than the spin-triplet states. Also, magnetization effect decreases due to the electronelectron
interaction.
Keywords :
Quantum rings , Electronic properties , Energy spectra , Magnetic flux
Journal title :
Astroparticle Physics
