Influence of chemical disorder on the electronic level spacing distribution of the Ag-5083 nanoparticle: A tight-binding study

• Autores: Medrano, LR, Landauro, CV
• Formato: artículo
• Fecha de Publicación: 2013
• Institución: Consejo Nacional de Ciencia Tecnología e Innovación
• Repositorio: CONCYTEC-Institucional
• Lenguaje: inglés
• OAI Identifier: oai:repositorio.concytec.gob.pe:20.500.12390/1120
• Enlace del recurso: https://hdl.handle.net/20.500.12390/1120; https://doi.org/10.1016/j.physb.2012.12.027
• Nivel de acceso: acceso abierto
• Materia: Nano-tecnología; Física; https://purl.org/pe-repo/ocde/ford#2.10.00

It study, employing a tight-binding Hamiltonian, the influence of chemical disorder on the electronic level spacing distribution of a silver nanoparticle containing 5083 atoms. The results indicate that in the absence of disorder the level spacing distributions are similar to those expected for systems belonging to the Gaussian Orthogonal Ensemble. Whereas, after increasing the chemical disorder, the electronic level spacing distribution and the statistics tend to the corresponding form for the Poisson Ensemble, i.e., the silver nanoparticle acquires an insulating character which is expected for strongly disordered systems. Hence, this kind of disorder produces the localization of the electronic states of the nanoparticle.