INFLUENCE OF DISORDER ON THE STATISTICS OF SEPARATION OF ELECTRONIC LEVELS OF NANOPARTICLES CU3568

• Autores: Medrano, L., Landauro, C., Rojas, J., Torres, J., Guzmán, A., Reátegui, S., Arroyo, J.
• Formato: artículo
• Fecha de Publicación: 2009
• Institución: Universidad Nacional Mayor de San Marcos
• Repositorio: Revistas - Universidad Nacional Mayor de San Marcos
• Lenguaje: español
• OAI Identifier: oai:ojs.csi.unmsm:article/4390
• Enlace del recurso: https://revistasinvestigacion.unmsm.edu.pe/index.php/quim/article/view/4390
• Nivel de acceso: acceso abierto
• Materia: Nanopartícula de cobre; separación de niveles; desorden.; Copper nanoparticle; level-spacing statistics; disorder.

In the present work we study the influence of disorder on the electronic level statistics of a copper nanoparticle with 3568 atoms (Cu3568). The most stable configuration was obtained from molecular dynamic simulations employing a Johnson’s potential for copper. The results indicate that for weak disorder on the on-site energy of the tight-binding Hamiltonian, the nearest-neighbors level spacing distribution is similar to the Wigner distribution. Howerver, for strong disorder the distribution changes to a Poisson-like distribution which is expected for strongly disordered systems.