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Electronic properties of a large quantum dot at a finite temperature
Authors:Berna Gü  lveren, Ü  lfet Atav,Mehmet Tomak
Affiliation:aSelçuk University, Faculty of Arts and Science, Physics Department Campus 42075 Konya, Turkey;bMiddle East Technical University, Physics Department, 06531 Ankara, Turkey
Abstract:
The physical properties of a two-dimensional parabolic quantum dot composed of large number of interacting electrons are numerically determined by the Thomas–Fermi (TF) method at a finite temperature. Analytical solutions are given for zero temperature for comparative purposes. The exact solution of the TF equation is obtained for the non-interacting system at finite temperatures. The effect of the number of particles and temperature on the properties are investigated both for interacting and non-interacting cases. The results indicate that the effect of e–e interaction on the density profile shows different temperature dependencies above and below a certain temperature Tc.
Keywords:Low-dimensional systems   Thomas–  Fermi method
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