Localization in different models for one-dimensional incommensurate systems A

ANA MARÍA LLOIS; NORAH V COHAN; MARIANA WEISSMANN

PHYSICAL REVIEW B - CONDENSED MATTER AND MATERIALS PHYSICS

APS

Lugar: New York; Año: 1984 vol. 29 p. 3111 - 3116

0163-1829

We have studied the localization properties of one-dimensional incommensurate systems within the tight-binding approximation with first-neighbor interactions for several modulation functions:sawtooth, zigzag, and solitonlike functions. We show that the localization properties are strongly dependent on the type of modulation used. In the case of a solitonlike system we also studied thecharge distribution, finding that electronic charge has the tendency to localize on dislocations.