Calculation of the cyclotron transition line-width by confined phonon scattering using the projection-reduction method

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• 作者：Nam Lyong Kang ; Jin Young Youn ; Mi Seon Baek ; Eun Ji Han
• 关键词：Solid State and Materials
• 刊名：The European Physical Journal B - Condensed Matter
• 出版年：2015
• 出版时间：November 2015
• 年：2015
• 卷：88
• 期：11
• 全文大小：330 KB
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• 作者单位：Nam Lyong Kang (1)
  Jin Young Youn (2)
  Mi Seon Baek (2)
  Eun Ji Han (2)
  
  1. Department of Nanomechatronics Engineering, Pusan National University, 627-706, Miryang, Republic of Korea
  2. Department of Applied Nanoscience, Pusan National University, 627-706, Miryang, Republic of Korea
  
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Condensed Matter
  Physics
  Complexity
  Fluids
  Solid State Physics and Spectroscopy
  Superconductivity, Superfluidity and Quantum Fluids
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1434-6036

文摘

A formula to obtain the cyclotron transition line-widths for a system of electrons interacting with confined-acoustic phonons through the deformation potential in a quantum well is derived using the projection-reduction method. The result contains the distribution functions for the electrons and phonons properly. Therefore, the phonon absorption and emission processes can be explained in an organized manner and the result can be represented diagrammatically, through which insight into the quantum dynamics of electrons in a solid can be obtained. The formula is used to calculate the cyclotron transition line-widths in silicon. It is shown that the line-width increases with increasing temperature but the well width and magnetic field dependence of the line-width are complicated. It is also shown that only a few low-energy confined modes contribute significantly to the line-widths.