Romero García, Vicente; VASSEUR, J.O; García-Raffi, L. M.; Hladky-Hennion, A.C.(IOP Publishing: Open Access Journals, 2012-02)
The complex band structures calculated using the extended plane
wave expansion (EPWE) reveal the presence of evanescent modes in periodic
systems, never predicted by the classical ω(kE) methods, providing novel
interpretations ...