electronic properties of a concentric triple quantum nanoring

نویسندگان

h. k. salehani

m. esmaeilzadeh

kh. shakouri

m. r. abolhassani

e. faizabadi

چکیده

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.

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عنوان ژورنال:
international journal of nanoscience and nanotechnology

ناشر: iranian nano society

ISSN 1735-7004

دوره 7

شماره 2 2011

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