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Author | dc.contributor.author | Molina Gálvez, Mario | |
Admission date | dc.date.accessioned | 2018-12-20T14:11:17Z | |
Available date | dc.date.available | 2018-12-20T14:11:17Z | |
Publication date | dc.date.issued | 2006 | |
Cita de ítem | dc.identifier.citation | Physical Review B - Condensed Matter and Materials Physics, Volumen 74, Issue 4, 2018, | |
Identifier | dc.identifier.issn | 10980121 | |
Identifier | dc.identifier.issn | 1550235X | |
Identifier | dc.identifier.other | 10.1103/PhysRevB.74.045412 | |
Identifier | dc.identifier.uri | https://repositorio.uchile.cl/handle/2250/154541 | |
Abstract | dc.description.abstract | We examine the formation of localized states on a generalized nonlinear impurity located at or near the surface of a semi-infinite two-dimensional (2D) square lattice. Using the formalism of lattice Green functions, we obtain in closed form the number of bound states as well as their energies and probability profiles, for different nonlinearity parameter values and nonlinearity exponents, at different distances from the surface. We specialize in two cases: an impurity close to an "edge" and an impurity close to a "corner." We find that, unlike the case of a 1D semi-infinite lattice, in 2D, the presence of the surface helps in the formation of a localized state. © 2006 The American Physical Society. | |
Lenguage | dc.language.iso | en | |
Type of license | dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Chile | |
Link to License | dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/cl/ | |
Source | dc.source | Physical Review B - Condensed Matter and Materials Physics | |
Keywords | dc.subject | Electronic, Optical and Magnetic Materials | |
Keywords | dc.subject | Condensed Matter Physics | |
Título | dc.title | Nonlinear surface impurity in a semi-infinite two-dimensional square lattice: Green function approach | |
Document type | dc.type | Artículo de revista | |
Cataloguer | uchile.catalogador | SCOPUS | |
Indexation | uchile.index | Artículo de publicación SCOPUS | |
uchile.cosecha | uchile.cosecha | SI | |
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