Strain and magnetic field effect on thermodynamic properties of a two dimensional GaAs quantum dot

IF 1.1 4区工程技术 Q4 Engineering

High Temperatures-high Pressures Pub Date : 2023-01-01 DOI:10.32908/hthp.v52.1391

Ahmad Ghanbari

引用次数: 0

Abstract

The strain and magnetic field effect on thermodynamic properties of a two dimensional GaAs quantum dot (QD) is investigated within the effective mass approximation. To this end, first we have obtained the wave functions and energy levels of the system in the presence of Bychkov-Rashba and Dressalhaus terms. Then using the obtained energy levels, we have computed the partition function by the Poisson summation formalism. Afterward, we have deduced some thermodynamic properties such as mean energy, entropy, specific heat and free energy using the canonical ensemble approach. Finally, the thermodynamic properties for a two dimensional GaAs QD have been discussed in detail.

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应变和磁场对二维砷化镓量子点热力学性质的影响

在有效质量近似下研究了应变和磁场对二维砷化镓量子点(QD)热力学性质的影响。为此，我们首先得到了存在Bychkov-Rashba项和Dressalhaus项时系统的波函数和能级。然后利用得到的能级，用泊松求和公式计算配分函数。然后，我们用正则系综方法推导了一些热力学性质，如平均能、熵、比热和自由能。最后，详细讨论了二维砷化镓量子点的热力学性质。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

High Temperatures-high Pressures THERMODYNAMICS-MECHANICS

CiteScore

1.00

自引率

9.10%

发文量

期刊介绍： High Temperatures – High Pressures (HTHP) is an international journal publishing original peer-reviewed papers devoted to experimental and theoretical studies on thermophysical properties of matter, as well as experimental and modelling solutions for applications where control of thermophysical properties is critical, e.g. additive manufacturing. These studies deal with thermodynamic, thermal, and mechanical behaviour of materials, including transport and radiative properties. The journal provides a platform for disseminating knowledge of thermophysical properties, their measurement, their applications, equipment and techniques. HTHP covers the thermophysical properties of gases, liquids, and solids at all temperatures and under all physical conditions, with special emphasis on matter and applications under extreme conditions, e.g. high temperatures and high pressures. Additionally, HTHP publishes authoritative reviews of advances in thermophysics research, critical compilations of existing data, new technology, and industrial applications, plus book reviews.