Cyclotron resonance of a magnetopolaron in a quasi-two-dimensional system at finite temperatures

Bao-Hua Wei and Shi-Wei Gu
Phys. Rev. B 43, 9190 – Published 15 April 1991
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Abstract

Taking into account the interaction of an electron with both bulk longitudinal-optical and interface-optical (IO) phonons, the cyclotron resonance of a magnetopolaron in quasi-two-dimensional systems at finite temperatures is investigated by using the generalized Larsen perturbation-theory method. It is shown that the absorption and emission resonance must be considered at the same time at finite temperatures. The results also show the important role played by the electron–IO-phonon interaction. For a magnetopolaron at the interface of the GaAs/GaSb structure and in a GaAs/Ga1xAlxAs quantum-well structure, the splitting of the cyclotron-resonance spectrum and the temperature dependence of the splitting of the cyclotron-resonance mass of a magnetopolaron in the resonant-magnetic-field region have been studied.

  • Received 24 September 1990

DOI:https://doi.org/10.1103/PhysRevB.43.9190

©1991 American Physical Society

Authors & Affiliations

Bao-Hua Wei

  • Center of Theoretical Physics, Chinese Center of Advanced Science Technology (World Laboratory), Beijing 100 080, The People’s Republic of China
  • Department of Applied Physics, South China University of Technology, Guangzhou 510642, The People’s Republic of China

Shi-Wei Gu

  • Center of Theoretical Physics, Chinese Center of Advanced Science Technology (World Laboratory), Beijing 100 080, The People’s Republic of China
  • Department of Applied Physics and Institute of Condensed Matter Physics, Shanghai Jiao Tong University, 1954 Hua Shan Road, Shanghai 200 030, The People’s Republic of China
  • Institute of Condensed Matter Physics, Academia Sinica, Shenyang, The People’s Republic of China
  • Laboratory for Infrared Physics, Academia Sinica, Shanghai, The People’s Republic of China

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Issue

Vol. 43, Iss. 11 — 15 April 1991

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