Effects of Temperature on the Ground State Energy of the Strong Coupling Polaron in a RbCl Asymmetrical Semi-Exponential Quantum Well

Wang, Xiuqing; Xiao, Jing‐Lin

doi:10.1007/s10773-018-3857-5

Cited by 8 publications

(1 citation statement)

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“…Among many types of QWs, the asymmetrical semiexponential QW (ASEQW) is a new model to study the structure and performance of QWs in recent years. Guo Kangxian's team [11][12][13][14][15][16] and Wang et al [17] have studied the polaron's optical properties and the temperature effect of the ground state energy (GSE) in ASEQW, respectively. Impurities are inevitably introduced during the material manufacturing process.…”

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confidence: 99%

Effects of an anisotropic parabolic potential and Coulomb's impurity potential on the energy characteristics of asymmetrical semi-exponential CsI quantum wells

Cai

Qiu

Sun

et al. 2020

Commun. Theor. Phys.

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Because of its unique optoelectronic properties, people have studied the characteristics of polarons in various quantum well (QW) models. Among them, the asymmetrical semi-exponential QW (ASEQW) is a new model for studying the structure of QWs in recent years. It is of great significance to study the influences of the impurity and anisotropic parabolic confinement potential (APCP) on the crystal’s properties, because some of the impurities, usually regarded as Coulomb’s impurity potential (CIP), will exist in the crystal more or less, and the APCP has flexible adjustment parameters. However, the energy characteristics of the ASEQW under the combined actions of impurities and APCP have not been studied, which is the motivation of this paper. Using the linear combination operation and Lee–Low–Pines unitary transformation methods, we investigate the vibrational frequency and the ground state energy of the strong coupling polaron in an ASEQW with the influences of the CIP at the origin of coordinates and APCP, and make a comparison between our results and previous literature’s. Our numerical results about the energy properties in the ASEQW influenced by the CIP and APCP may have important significances for experimental design and device preparation.

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