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Strong Coupling Polaron in a Slab of Polar Crystal |
HUANG Zhuohe;CHEN Chuanyu;LIANG Shidong;ZHANG Shuqun |
Department of Physics, Guangzhou Teachers College, Guangzhou 510400 |
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Cite this article: |
HUANG Zhuohe, CHEN Chuanyu, LIANG Shidong et al 1994 Chin. Phys. Lett. 11 754-757 |
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Abstract By using the extensive Pekar's variational method, the strong coupling polaron energy and the effective mass in a slab of polar crystal including both LO- and SO-phonons are derived as a function of the thickness of slab and the coupling constant. When the slab is thin, the SO-phonons not only influence the ground state energy, but also make the polaronic effective mass become non-isotropic.
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Keywords:
63.20.Kr
71.38.+i
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Published: 01 December 1994
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