Thermal and magnetic properties of electron gas in toroidal quantum dot

被引：40

作者：

Baghdasaryan, D. A. ^{[1
]}

Hayrapetyan, D. B. ^{[1
]}

Kazaryan, E. M. ^{[1
]}

Sarkisyan, H. A. ^{[1
,2
,3
]}

机构：

[1] Russian Armenian Univ, 123 Hovsep Emin Str, Yerevan 0051, Armenia

[2] Peter Great St Petersburg Polytech Univ, St Petersburg 195251, Russia

[3] Yerevan State Univ, Yerevan 0025, Armenia

来源：

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2018年 / 101卷

基金：

欧盟地平线“2020”;

关键词：

Toroidal quantum dot; Magnetic field; Magnetic susceptibility; Heat capacity; Entropy; SPECTRA;

D O I：

10.1016/j.physe.2018.03.009

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

One-electron states in a toroidal quantum dot in the presence of an external magnetic field have been considered. The magnetic field operator and the Schrodinger equation have been written in toroidal coordinates. The dependence of one-electron energy spectrum and wave function on the geometrical parameters of a toroidal quantum dot and magnetic field strength have been studied. The energy levels are employed to calculate the canonical partition function, which in its turn is used to obtain mean energy, heat capacity, entropy, magnetization, and susceptibility of noninteracting electron gas. The possibility to control the thermodynamic and magnetic properties of the noninteracting electron gas via changing the geometric parameters of the QD, magnetic field, and temperature, was demonstrated.

引用

页码：1 / 4

页数：4

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