Bloch-Kohn and Wannier-Kohn functions in one dimension
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Data
2003-10-15
Autores
Bruno-Alfonso, A.
Hai, G. Q.
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Iop Publishing Ltd
Resumo
Bloch and Wannier functions of the Kohn type for a quite general one-dimensional Hamiltonian with inversion symmetry are studied. Important clarifications on null minigaps and the symmetry of those functions are given, with emphasis on the Kronig-Penney model. The lack of a general selection rule on the miniband index for optical transitions between edge states in semiconductor superlattices is discussed. A direct method for the calculation of Wannier-Kohn functions is presented.
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Journal of Physics-condensed Matter. Bristol: Iop Publishing Ltd, v. 15, n. 40, p. 6701-6714, 2003.