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S. L. HOU1, J. H. HOU1,*
The electron- acoustic phonon interaction in monolayer graphene is studied in this paper. The interaction Hamiltonian of the electron and acoustic phonon in monolayer graphene is derived. The self-trapping transition of the acoustic polaron in monolayer graphene is investigated by using the variation of the ground-state energy of the acoustic polaron based on the electron-acoustic phonon coupling constant. It is shown that the electron near the Dirac point can not form normal polaron and the self-trapping transition of the acoustic polaron can not realized in this point of the monolayer graphene. The results show that outside the Dirac point, the self-trapping of acoustic polaron is consistent with the theory in ideal two-dimensional systems.
Two dimensional materials, Acoustic polaron, Self-trapping, Graphene.
S. L. HOU, J. H. HOU, The electron- acoustic phonon interaction in monolayer graphene, Optoelectronics and Advanced Materials - Rapid Communications, 14, 1-2, January-February 2020, pp.69-72 (2020).
Submitted at: July 24, 2019
Accepted at: Feb. 17, 2020
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
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