Shubnikov-De Haas Effect in Cylindrical Quantum Wires under the Influence of a Laser Radiation

p. 69-75

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Main Authors: Nguyen, Thu Huong, Nguyen, Vu Nhan, Dang, Thi Thanh Thuy
Format: Article
Language:English
Published: H. : ĐHQGHN 2017
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Online Access:http://repository.vnu.edu.vn/handle/VNU_123/55654
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Institution: Vietnam National University, Hanoi
Language: English
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spelling oai:112.137.131.14:VNU_123-556542018-07-13T09:09:16Z Shubnikov-De Haas Effect in Cylindrical Quantum Wires under the Influence of a Laser Radiation Nguyen, Thu Huong Nguyen, Vu Nhan Dang, Thi Thanh Thuy Hall coefficient cylindrical quantum wires electron - optical phonon interaction Shubnikov-de Haas oscillations p. 69-75 Considering an infinite potential Cylindrical Quantum Wire (CQW) subjected to a dc electric field , a Magnetic Field (MF) and a laser radiation (where and are the amplitude and the frequency of the laser radiation, respectively), the quantum kinetic equation for electron distribution function is obtained. Assuming the electron gas is non-degenerate and considering the Electron - Acoustic Phonon (AP) interaction, we achieve analytical expressions for the conductivity tensor and the Hall Coefficient (HC), which are different from those for the case of the Electron - AP interaction in a Rectangular Quantum Wire (RQW) or in Two-Dimensional Electron Gas (2DEG). The Shubnikov-de Haas (SdH) oscillations will appear. The amplitudes of SdH oscillations in the dependence of Magnetoresistance (MR) decrease with increasing MF. Numerical calculations are applied for GaAs/GaAsAl CQW to show the nonlinear dependence of the HC on the frequency of the laser radiation, and Magnetic Field (MF). Wave function and energy spectrum in a CQW are dissiminar to those in other Quantum Wires (QWs). Therefore, all numerical results are different from those in the case of QWs. The most important result is that the HC reaches saturation as the magnetic field or the EMW frequency increases. 2017-08-07T08:35:04Z 2017-08-07T08:35:04Z 2016 Article Nguyen, T. H., Nguyen, V. N., Dang, T. T. T, (2016). Shubnikov-De Haas Effect in Cylindrical Quantum Wires under the Influence of a Laser Radiation. VNU Journal of Science: Mathematics – Physics, 32 (2), 69-75 2588-1124 http://repository.vnu.edu.vn/handle/VNU_123/55654 en Vol. 32;No 2 (2016) VNU Journal of Science: Mathematics – Physics application/pdf H. : ĐHQGHN
institution Vietnam National University, Hanoi
building VNU Library & Information Center
country Vietnam
collection VNU Digital Repository
language English
topic Hall coefficient
cylindrical quantum wires
electron - optical phonon interaction
Shubnikov-de Haas oscillations
spellingShingle Hall coefficient
cylindrical quantum wires
electron - optical phonon interaction
Shubnikov-de Haas oscillations
Nguyen, Thu Huong
Nguyen, Vu Nhan
Dang, Thi Thanh Thuy
Shubnikov-De Haas Effect in Cylindrical Quantum Wires under the Influence of a Laser Radiation
description p. 69-75
format Article
author Nguyen, Thu Huong
Nguyen, Vu Nhan
Dang, Thi Thanh Thuy
author_facet Nguyen, Thu Huong
Nguyen, Vu Nhan
Dang, Thi Thanh Thuy
author_sort Nguyen, Thu Huong
title Shubnikov-De Haas Effect in Cylindrical Quantum Wires under the Influence of a Laser Radiation
title_short Shubnikov-De Haas Effect in Cylindrical Quantum Wires under the Influence of a Laser Radiation
title_full Shubnikov-De Haas Effect in Cylindrical Quantum Wires under the Influence of a Laser Radiation
title_fullStr Shubnikov-De Haas Effect in Cylindrical Quantum Wires under the Influence of a Laser Radiation
title_full_unstemmed Shubnikov-De Haas Effect in Cylindrical Quantum Wires under the Influence of a Laser Radiation
title_sort shubnikov-de haas effect in cylindrical quantum wires under the influence of a laser radiation
publisher H. : ĐHQGHN
publishDate 2017
url http://repository.vnu.edu.vn/handle/VNU_123/55654
_version_ 1680963260331851776