Journal of Interfaces, Thin Films, and Low dimensional systems
Spin-orbit interactions at finite temperature in low dimensional bound states
Document Type : Original Article
Author
Department of Physics and Engineering Sciences, Imam Khomeini International University, Buein Zahra Higher Education Centre of Engineering and Technology, Iran
Abstract
Spin-orbit interactions of exciton relativistic bound states at a finite temperature in the framework of the projective unitary representation in a physics model with the Coulomb potential have been investigated. The ground state of the system in order to describe the temperature effect in a low dimension environment has been defined. The bound state, with electron-hole pair, has attracted a great deal of interest in thin films and nanophysics. The reality of the state has been the subject of intense concern among theoreticians and experimenters in recent years. Spin-orbit interactions of exciton are considered to be in an electron-hole pair bound state. The problem of spin interactions of coupled states based on the quantum field theory in its widest sense is a method to control and achieve reasonable goals; and in this article, the problem is examined in detail. The structure of the interaction Hamiltonian with the Coulomb type potential at finite temperatures is defined and then the mass and energy spectra of an exciton based on the spin interactions are determined theoretically. The defined properties at finite temperature can be used for new high technology materials of semi-conductive features for electronics, microelectronics, photovoltaic or solar cell manufacturing, and semiconductor chips.
Keywords
Article Title [Persian]
اثر برهم‌کنش اسپین مدار دمای محدود در سیستم های مقید با بعد کم
Author [Persian]
- آرزو جهانشیر
گروه فیزیک و دانش های مهندسی، دانشگاه بین المللی امام خمینی، مرکز آموزش عالی و فنی مهندسی بوئین زهرا، ایران
Abstract [Persian]
اثر جفت‌شدگی اسپین مدار، تغییرات تابع موج و مقادیر ویژه انرژی در دمای محدود ساختارهای مقید اکسیتون و چند اکسیتونی بخش مهمی از چالش‌های پیش رو در فیزیک سیستم های مقید با بعد کم است. در این مقاله یک روش نظری برای بدست آوردن پارامترهای ذکر شده در سیستم های مقید با بعد کم ارایه شده است. به همین دلیل با توجه به اهمیت موضوع، با استناد بر اصول نظریة میدان‌های کوانتومی و روش بازنمایی نوسانگر و بهنجارش عملگرهای زاد و فنا اثرات نسبیتیِ برهم کنش بر روی تغییرات هامیلتونی سیستم مقید در دمای محدود اعمال شده است. نتایج نظری برای تحول فناوری‌های نوین در ساخت مواد جدید، تراشه های الکترونیکی و میکروالکترونیک، نیمه رساناها، سلولهای سوختی، سلول های فتوولتائیک کاربرد قابل توجهی دارد.
Keywords [Persian]
- ساختار مقید
- اکسیتون
- جرم نسبیتی
- برهم کنشهای اسپینی
[2] M. Dienykhan, G. Efimov, G. GanboldS, N. Nedelko, “Oscillator Representation in Quantum Physics (Lecture Notes in Physics Monographs).” 1st ed. Springer International Publishing (1995).
[3] D. Fujiwara, “Rigorous Time Slicing Approach to Feynman Path Integrals.” 1st ed. Springer International Publishing (2017).
[4] J. Kelley, J. Leventhal, “Ladder Operators for the Harmonic Oscillator. Problems in Classical and Quantum Mechanics.” Springer International Publishing (2017).
[5] A. Jahanshir, “Quanto-Optical Effects of Exciton-Polariton System.” American Journal of Optics and Photonics, 3 (2015) 89; W. Lucha, F. F. Schoberl, D. Gromes, “Bound states of quarks.” Physics Reports, 200 (1991) 127.
[6] R. Gould, “Quantum Electrodynamics. Electromagnetic Processes.” 1st ed. Springer-Verlag (2020).
[7] A. Jahanshir, “Relativistic Modification of the Exciton’s Mass in Monolayer TMDCs Materials.” Journal of Advanced Materials and Processing, 8 (2020) 45.
[8] A. Maireche, “A theoretical investigation of nonrelativistic bound state solution at finite temperature using the sum of modified Cornell plus inverse quadratic potential.” Sri Lankan J Physics, 21 (2020) 11.
[9] F. Rodríguez-Dueñas, "Optical and transport properties of cuasi-one dimensional electronic systems." Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales, 46 (2018) 150.
[10] R. Meulenberg et al., "Determination of the exciton binding energy in CdSe quantum dots," ACS Nano, 3 (2009) 325.
[11] K. Heyong-chan et al., "New Variational Perturbation Theory Basedonq−Deformed Oscillator." International Journal of Theoretical Physics, 45 (2006) 1017.
[12] A. Taqi, J. Diouri, "A theoretical model for exciton binding energies in rectangular and parabolic spherical finite quantum dots." Semiconductor physics quantum electronics & optoelectronics, 15 (2012) 365.
[13] M. Richard et al., "Exciton-polariton Bose-Einstein condensation: advances and issues", International journal of nanotechnology, 7 (2010) 668.
[14] M. Dharma-wardana et al., "Correlation functions in electron-electron and electron-hole doublequantum wells: temperature, density and barrier-width dependence." arXiv:1901.00895v1 [cond-mat.mes-hall] (2019).
[15] A., Tanveer Karim, et al., “ Temperature dependency of excitonic effective mass and charge carrier conduction mechanism in CH3NH3PbI3−xClx thin films”, Scientific Reports, 11 (2021) 1.
)