Polaronic effects in asymmetric quantum wire: An all-coupling variational approach

Krishna PM; Mukhopadhyay S; Chatterjee A

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Polaronic effects in asymmetric quantum wire: An all-coupling variational approach

机译：非对称量子线中的极化效应：一种全耦合变分方法

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An all-coupling variational calculation based on Lee-Low-Pines-Huybrechts (LLPH) theory is performed to study the ground state and the first excited state in an asymmetric polar semiconductor quantum wire that is valid for the entire range of the electron-phonon coupling constant and arbitrary confinement length. It is shown that the polaronic effects are very important and size dependent, if the effective width of the wire is reduced below a certain length scale. It is also shown that asymmetry in a quantum wire can be used as an extra parameter to increase the stability of the polaron. Finally the theory is applied to a realistic CdS quantum wire. (c) 2006 Elsevier Ltd. All rights reserved.

机译：进行基于Lee-Low-Pines-Huybrechts（LLPH）理论的全耦合变分计算，以研究对电子声子整个范围有效的非对称极性半导体量子线的基态和第一激发态耦合常数和任意约束长度。结果表明，如果导线的有效宽度减小到一定的长度范围以下，则极化作用非常重要且与尺寸有关。还显示出量子线中的不对称性可以用作增加极化子稳定性的额外参数。最后，该理论被应用于现实的CdS量子线。（c）2006 Elsevier Ltd.保留所有权利。

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来源
《Solid State Communications》 |2006年第6期|p. 285-289|共5页
作者
Krishna PM; Mukhopadhyay S; Chatterjee A;
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作者单位

Univ Hyderabad, Sch Phys, Hyderabad 500046, Andhra Pradesh, India;

Shadan Inst PG Studies, Hyderabad 500004, Andhra Pradesh, India;

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原文格式 PDF
正文语种 eng
中图分类固体物理学;
关键词
asymmetric quantum wire; polaronic effects; OPTICAL POLARON; EFFECTIVE-MASS; ELECTRON; DOT; SYSTEMS; STATES; RENORMALIZATION; ENERGY; WELLS; BODY;

机译：非对称量子线;极化效应;光学极化;有效质量;电子;点;系统;状态;重整化;能量;孔;体;

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机译：量子点中极化子效应的压缩态变分方法
2. Bound polaron in a spherical quantum dot: The all-coupling variational approach - art. no. 195335 [J] . Melnikov DV., Fowler WB. Physical Review, B. Condensed Matter . 2001,第19期

机译：球形量子点中的束缚极化子：全耦合变分方法-艺术。没有。 195335
3. Ground and the first excited states of an electron in a multidimensional polar semiconductor quantum dot: An all-coupling variational approach [J] . Mukhopadhyay Soma, Chatterjee Ashok Journal of Physics. Condensed Matter . 1999,第9期

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4. A novel variational approach for modeling sub-0.1 micron MOS devices including quantum mechanical interface charge confinement effects [C] . Norman G. Gunther, Ayhan A. Mutlu, Mahmud Rahman Device Research Conference . 2002

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6. Effects of Asymmetric Quantum Wells on the Structural and Optical Properties of InGaN-Based Light-Emitting Diodes [O] . Chia-Lung Tsai, Wei-Che Wu 2014

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7. Polaronic effects in asymmetric quantum wire: An all-copuling variational approach [O] . Krishna, P. M., Mukhopadhyay, S., Chatterjee, A. 2006

机译：非对称量子线中的极化子效应：全微分变分方法

Polaronic effects in asymmetric quantum wire: An all-coupling variational approach

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