Parabolic Potential and Temperature Effects on the Magnetopolaron in a RbCl Asymmetrical Semi-exponential Quantum Well

Xiao, Weiping; Miao, Xiu-Juan; Sun, Yong; Ma, Xin-Jun; Xiao, Jing‐Lin

doi:10.1007/s10909-022-02840-7

Cited by 3 publications

(1 citation statement)

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“…The intriguing phenomenon in the figure was caused by a stronger coupling of phonons to polarons, which was brought on by an increase in the AGCP. This was compared with the following references: Xiao et al [48] performed a theoretical investigation on the GSE, GSBE, VF and LO-phonon averages of strongly coupled magnetopolarons in asymmetric semi-exponential quantum wells. Sun et al [49] performed a theoretical investigation on the effects of the barrier height and range on the vibration frequency, first excited state energy, excitation energy and coherence time in semi-exponential confinement potential QWs.…”

Section: Resultsmentioning

confidence: 99%

Asymmetrical Gaussian Potential Effects on Strongly Coupled Magnetopolaron Properties in Triangular Confinement Potential Quantum Wells

Han

Miao

et al. 2022

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In this research, the existence of an asymmetrical Gaussian confinement potential (AGCP) along the quantum well (QW) growth direction and of a parabolic potential perpendicular to the polar coordinate direction were considered. The magnetic field and temperature properties of the longitudinal optical (LO)-phonon mean number, ground-state energy (GSE), ground-state binding energy (GSBE) and vibrational frequency (VF) of strongly coupled magnetopolarons in triangular confinement potential QWs (TCPQWs) were investigated according to the quantum statistical theory as well as the linear combination operator and unitary transformation methods. We obtained analytical expressions for the GSE, GSBE, VF and LO-phonon mean number as functions of the applied magnetic field, temperature, AGCP barrier height, AGCP range, polar coordinate system’s polar angle and polar coordinate system’s confinement strength. It was demonstrated by the calculated numerical results that the GSE, GSBE, VF and LO-phonon mean number varied with the related physical quantities. The obtained theoretical results are expected to provide a reference for future research on polarons.

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Section: Resultsmentioning

confidence: 99%