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...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.展开更多
基金Supported by the National Natural Science Foundationthe Advanced Educational Department of Guangdong Province.
文摘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.
