Springer LINK: The European Physical Journal B - Abstract Volume 5 Issue 2 (1998) pp 215-218

The European Physical Journal B

ISSN: 1434-6028 (printed version)
ISSN: 1434-6036 (electronic version)

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Abstract Volume 5 Issue 2 (1998) pp 215-218

A bound polaron in a spherical quantum dot

H.-J. Xie (1), C.-Y. Chen (2) (a)

(1) Department of Physics, Guangzhou Teachers College, Guangzhou 510400, P.R. China
(2) CCAST (World Laboratory), P.O. Box 8730, Beijing 100080, China and Department of Physics, Guangzhou Teachers College, Guangzhou 510400, P.R. China

Received: 13 October 1997 / Revised: 4 March 1998 / Accepted: 26 May 1998

Abstract: The binding energy of a bound polaron in a spherical quantum dot has been investigated by using the variational method. The influence of LO and SO phonons have taken into consideration. Result shows that the phonon contribution to the binding energy is dependent on the size of the quantum dot as well as the position of the impurity in the quantum dot. Numerical calculation on the ZnSe quantum dot shows that such contribution is about 5% to 20% of the total binding energy.

PACS. 71.38.+i Polarons and electron-phonon interactions - 73.20.Dx Electron states in low-dimensional structures - 71.55.Gs II-VI semiconductors

(a) email: ccyl@guangztc.edu.cn

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