Effects of strain, magnetic field and temperature on entropy of a two dimensional GaAs quantum dot under spin-orbit interaction

被引：18

作者：

Khordad, R. ^{[1
]}

Bahramiyan, H. ^{[2
]}

Sedehi, H. R. Rastegar ^{[3
]}

机构：

[1] Univ Yasuj, Dept Phys, Coll Sci, Yasuj, Iran

[2] Islamic Azad Univ, Marvdasht Branch, Dept Opt & Laser Engn, Marvdasht, Iran

[3] Jahrom Univ, Dept Phys, Jahrom 7413766171, Iran

来源：

OPTICAL AND QUANTUM ELECTRONICS | 2018年 / 50卷 / 07期

关键词：

Entropy; Spin-orbit interaction; Quantum dot; Strain effect; NON-EXTENSIVE ENTROPY; DIAMAGNETIC SUSCEPTIBILITY; ELECTRIC-FIELD; IMPURITY; DYNAMICS; BEHAVIOR; POLARON; ENERGY;

D O I：

10.1007/s11082-018-1557-2

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, we have studied the effects of temperature, strain and magnetic field on non-extensive entropy of a two-dimensional (2D) quantum dot under spin-orbit interaction. To this end, we have obtained the energy levels and wave functions of the system in the presence of Bychkov-Rashba, Dresselhaus and strain effects by using diagonalization procedure. Then, we have used the Tsallis formalism and calculated the entropy of the system. It is found that the entropy is increased with enhancing the temperature with and without strain. The entropy increases with considering the negative strain. The strain has not strongly effect on the entropy at low temperatures.

引用

页数：13

共 47 条

[1] Noise-driven diamagnetic susceptibility of impurity doped quantum dots: Role of anisotropy, position-dependent effective mass and position-dependent dielectric screening function [J].