Abstract
The variational effective mass with respect to the e-p coupling constant for different values of cutoff wave vector is performed in quantum dot. The self-trapping transition of acoustic polaron in quantum dot is reconsidered by character of the effective mass curve varying with the e-p coupling. The holes are determined to be self-trapped in AlN quantum dot systems.
Highlights
The luminous property of the photoelectric materials has been explored by the trapping electrons for a long time [1]-[17]
We study the interaction of electron-longitudinal acoustic-phonon (e-LA-p) in quantum dots by using a Huybrechts-like variational approach [18]
Which we thought the self-trapping transition of the electron is coming up induced by the acoustic phonon interaction
Summary
The luminous property of the photoelectric materials has been explored by the trapping electrons for a long time [1]-[17]. That the self-trapping transition of the electron in low dimension is easier to be realized It is well-known that the effective mass is corresponding to the carrier mobility, and has more experimental comparability. Effective mass theory had been used for years in several branches of modern physics like nuclear physics or solid-state physics. This theory is a useful tool for studying the motion of carriers in pure crystals and for the virtual-crystal approximation to the treatment of homogeneous alloys The numerical calculation for the effective mass of the polarons will be performed and used to discuss the characters of self-trapping of the acoustic polarons in quantum dots
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