Theoretical study of stress and strain distribution in coupled pyramidal InAs quantum dots embedded in GaAs by finite element method

@article{Liu2019TheoreticalSO,
  title={Theoretical study of stress and strain distribution in coupled pyramidal InAs quantum dots embedded in GaAs by finite element method},
  author={Xuefei Liu and Zijiang Luo and Xun Zhou and Jiemin Wei and Yi Wang and Xiang Guo and QiZhi Lang and Zhao Chen Ding},
  journal={The European Physical Journal B},
  year={2019},
  volume={92},
  pages={1-11}
}
  • Xuefei Liu, Zijiang Luo, +5 authors Zhao Chen Ding
  • Published 2019
  • Physics
  • Abstract Stress and strain distributions in and around a single or two-coupled pyramidal InAs quantum dots (QDs) embedded in GaAs are calculated by finite element methods according to the continuum elasticity theory. By changing the quantum dot spacing and thickness of cap layer, the results about strain and stress distributions show compressive strain and stress distribution in the QDs and relaxation undergoes two stages with different speeds for different quantum dot height, quantum width and… CONTINUE READING

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