Polaron Energy and Effective Mass in Parabolic Quantum Wells

Chin. Phys. Lett.

2005, Vol. 22

Issue (9): 2367-2371 DOI:

Original Articles

Polaron Energy and Effective Mass in Parabolic Quantum Wells

WANG Zhi-Ping¹;LIANG Xi-Xia^1,2

¹Department of Physics, Inner Mongolia University, Hohhot 010021 ²CCAST (World Laboratory), PO Box 8730, Beijing 100080

Cite this article:

WANG Zhi-Ping, LIANG Xi-Xia 2005 Chin. Phys. Lett. 22 2367-2371

Download: PDF(225KB)
Export: BibTeX | EndNote | Reference Manager | ProCite | RefWorks

Abstract The energy and effective mass of a polaron in a parabolic quantum well are studied theoretically by using LLP-like transformations and a variational approach. Numerical results are presented for the polaron energy and effective mass in the GaAs/Al_0.3Ga_0.7As parabolic quantum well. The results show that the energy and the effective mass of the polaron both have their maxima in the finite parabolic quantum well but decrease monotonously in the infinite parabolic quantum well with the increasing well width. It is verified that the bulk longitudinal optical phonon mode approximation is an adequate formulation for the electron-phonon coupling in parabolic quantum well structures.

Keywords: 73.20.Dx 71.38.+i 63.20.Kr

Published: 01 September 2005

PACS:	73.20.Dx
	71.38.+i
	63.20.Kr

TRENDMD:

URL:

https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2005/V22/I9/02367

Service
	E-mail this article
	E-mail Alert
	RSS
Articles by authors
	WANG Zhi-Ping
	LIANG Xi-Xia

Related articles from Frontiers Journals

[1]	A. John Peter, K. Navaneethakrishnan. Hydrogenic Donor in a Spherical Quantum Dot with Different Confinements[J]. Chin. Phys. Lett., 2009, 26(8): 2367-2371
[2]	DOU Xiu-Ming, SUN Bao-Quan, XIONG Yong-Hua, HUANG She-Song, NIHai-Qiao, NIU Zhi-Chuan. Temperature Dependence of Photoluminescence from Single and Ensemble InAs/GaAs Quantum Dots[J]. Chin. Phys. Lett., 2008, 25(9): 2367-2371
[3]	JIANG Li-Ming, WANG Hai-Long, WU Hui-Ting, GONG Qian, FENG Song-Lin. External Electric Field Effect on Hydrogenic Donor Impurity in Zinc-Blende InGaN Quantum Dot[J]. Chin. Phys. Lett., 2008, 25(8): 2367-2371
[4]	A. John Peter, Vemuri Lakshminarayana. Effects of Electric Field on Electronic States in a GaAs/GaAlAs Quantum Dot with Different Confinements[J]. Chin. Phys. Lett., 2008, 25(8): 2367-2371
[5]	Emine OZTURK, Ismail SOKMEN. Electronic Properties of p-Type δ-Doped GaAs Structure under Electric Field[J]. Chin. Phys. Lett., 2008, 25(4): 2367-2371
[6]	ZHOU Ben-Liang, LIAO Wen-Hu, ZHOU Guang-Hui,. Conductance of a Quantum Dot in the Presence of a Phonon Field[J]. Chin. Phys. Lett., 2008, 25(2): 2367-2371
[7]	ZHAO Feng-Qi, GONG Jian,. Energy of a Polaron in a Wurtzite Nitride Finite Parabolic Quantum Well[J]. Chin. Phys. Lett., 2007, 24(5): 2367-2371
[8]	E. Kasapoglu, M. Gunes, I. Sokmen. Effect of Hydrostatic Pressure on Interband Transitions in Coupled Quantum Wires[J]. Chin. Phys. Lett., 2007, 24(4): 2367-2371
[9]	HOU Jun-Hua, LIANG Xi-Xia. Self-Trapping of Acoustic Polaron in One Dimension[J]. Chin. Phys. Lett., 2007, 24(11): 2367-2371
[10]	ZHANG Ji-Ye, LIANG Xi-Xia,. Ground State of a Polaron in a Symmetric Triangular Quantum Well[J]. Chin. Phys. Lett., 2006, 23(8): 2367-2371
[11]	XIE Wen-Fang. Ground State of a Two-Electron Quantum Dot with a Gaussian Confining Potential[J]. Chin. Phys. Lett., 2006, 23(1): 2367-2371
[12]	YU Bing, CAO Jun-Cheng, FENG Song-Lin. Interface Phonon Modes in Quantum Cascade Lasers[J]. Chin. Phys. Lett., 2005, 22(9): 2367-2371
[13]	QIU Qing-Chun. Operatorization and Unitary Transformation Approaches to Product Jahn--Teller Problems[J]. Chin. Phys. Lett., 2005, 22(8): 2367-2371
[14]	HE Xiao-Yong, CAO Jun-Cheng, L{U} Jing-Tao, FENG Song-Lin. Simulation of Confined and Interface Phonons Scattering in Terahertz Quantum Cascade Laser[J]. Chin. Phys. Lett., 2005, 22(12): 2367-2371
[15]	REN Qing-Bao, CHEN Qing-Hu. Two-Site Holstein Model: a Variational Wavefunction Analysis[J]. Chin. Phys. Lett., 2005, 22(11): 2367-2371

Viewed

Full text

Abstract