Quantum Confinement Effects in Dynamically Screened Quasi-One-Dimensional Systems

doi:10.1088/0256-307X/30/6/067201

Chin. Phys. Lett.

2013, Vol. 30

Issue (6): 067201 DOI: 10.1088/0256-307X/30/6/067201

CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES

Quantum Confinement Effects in Dynamically Screened Quasi-One-Dimensional Systems

WANG Ting-Dong^1,2, HUAI Ping^1**

¹Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800
²University of Chinese Academy of Sciences, Beijing 100049

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WANG Ting-Dong, HUAI Ping 2013 Chin. Phys. Lett. 30 067201

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Abstract We theoretically study the quantum confinement effects on the self-energies of electrons and holes in quasi-one-dimensional semiconductor systems. It is found that the effective Coulomb interactions are enhanced with the increase in lateral confinement and the decrease in confinement size. The single-particle self-energies of electrons and holes are calculated in dynamic plasmon pole approximation within the GW approximation, where G refers to Green's function and W is the dynamically screened Coulomb interaction. The real and imaginary parts of the self-energies have a strong dependence on the effective Coulomb interactions.

Received: 21 January 2013 Published: 31 May 2013

PACS:	72.10.-d	(Theory of electronic transport; scattering mechanisms)
	78.66.Fd	(III-V semiconductors)
	78.67.Lt	(Quantum wires)
	68.65.La	(Quantum wires (patterned in quantum wells))

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https://cpl.iphy.ac.cn/10.1088/0256-307X/30/6/067201 OR https://cpl.iphy.ac.cn/Y2013/V30/I6/067201

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	HUAI Ping

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