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J. LI1, J. H. HOU1,*
The numerical results of the ground-state energy and the derivate of the acoustic polaron in free-standing quantum wells are performed by using the Huybrechts-like variational approach. The criterion for the self-trapping transition of the acoustic polaron in free-standing quantum wells is determined quantitatively. It is found that the critical coupling constant corresponding the discontinuous transition from a quasi-free state to a trapped state of the acoustic polaron in free-standing quantum wells tends to shift toward the weaker electron-phonon coupling with the increasing cutoff wave-vector. Detailed numerical results confirm that the self-trapping transition of acoustic polaron is expected to realize in the free-standing quantum wells of wide-band-gap semiconductors..
Free-standing quantum well, Acoustic polaron, Self-trapping.
J. LI, J. H. HOU, Acoustic polaron in free-standing quantum wells, Optoelectronics and Advanced Materials - Rapid Communications, 9, 3-4, March-April 2015, pp.447-450 (2015).
Submitted at: Aug. 7, 2014
Accepted at: March 19, 2015
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
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