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Temperature and hydrogen-like impurity effects on the excited state of the strong coupling bound polaron in a CsI quantum pseudodot |
Jing-Lin Xiao(肖景林) |
Institute of Condensed Matter Physics, Inner Mongolia University for the Nationalities, Tongliao 028043, China |
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Abstract With hydrogen-like impurity (HLI) located in the center of CsI quantum pseudodot (QPD) and by using the variational method of Pekar type (VMPT), we investigate the first-excited state energy (FESE), excitation energy and transition frequency of the strongly-coupled bound polaron in the present paper. Temperature effects on bound polaron properties are calculated by employing the quantum statistical theory (QST). According to the present work's numerical results, the FESE, excitation energy and transition frequency decay (amplify) with raising temperature in the regime of lower (higher) temperature. They are decreasing functions of Coulomb impurity potential strength.
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Received: 16 September 2016
Revised: 17 November 2016
Accepted manuscript online:
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PACS:
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71.38.-k
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(Polarons and electron-phonon interactions)
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73.21.La
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(Quantum dots)
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63.20.kd
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(Phonon-electron interactions)
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Fund: Project supported by the National Natural Science Foundation of China (Grant No. 11464033). |
Corresponding Authors:
Jing-Lin Xiao
E-mail: xiaojlin@126.com
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Cite this article:
Jing-Lin Xiao(肖景林) Temperature and hydrogen-like impurity effects on the excited state of the strong coupling bound polaron in a CsI quantum pseudodot 2017 Chin. Phys. B 26 027104
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