Abstract

In the present work, we have considered a polaron confined in a CsI quantum pseudodot (QPD) with the pseudoharmonic potential (PHP). The properties of the first-excited state energy, the excitation energy and the transition frequency of the strong-coupling polaron in the CsI QPD were studied by using variational method of Pekar type (VMPT). By employing a quantum statistical theory (QST), we have calculated the effect of the temperature on the properties of the polaron. The investigated results demonstrate that the absolute value of first-excited state energy, the excitation energy and the transition frequency lift (decay) with raising temperature in lower (higher) temperature regime. The excitation energy and the transition frequency are enhancing functions of the chemical potential of the two-dimensional electron gas, whereas the absolute value of first-excited state energy is a decaying one of it.

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