LO-phonon-assisted cyclotron resonance linewidth via multiphoton absorption process in cylindrical quantum wire

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• 作者：Huynh Vinh Phuc ; Le Thi Mai Hue ; Le Dinh ; Tran Cong Phong
• 关键词：LO-phonon-assisted cyclotron resonance ; Multiphoton absorption process ; Cylindrical quantum wire ; Linewidth
• 刊名：Superlattices and Microstructures
• 出版年：2013
• 出版时间：August, 2013
• 年：2013
• 卷：60
• 期：Complete
• 页码：508-515
• 全文大小：554 K

文摘

Phonon-assisted cyclotron resonance (PACR) in cylindrical quantum wire (CQW) is investigated via multiphoton absorption process when electrons are scattered by LO-phonon. The additional peaks in the absorption spectrum due to transitions between Landau levels accompanied by emission and absorption of LO-phonon are indicated. From curves on graphs of the absorption power, we obtain PACR-linewidth as profiles of the curves by using profile method. The temperature and magnetic field dependence of the absorption power and PACR-linewidth are investigated. The results are compared with those in the monophoton absorption. The calculations demonstrate that the multiphoton absorption process is strong enough to be detected in PACR.