Artículo
Aguilera-Granja, F.; Montejano-Carrizales, J.M.; Guevara, J.; Llois, A.M. "On the metallic behavior of Co clusters" (2000) Solid State Communications. 113(3):147-151
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Abstract:
The role of structure in the nonmetal-metal transition of Co clusters is investigated by performing calculations for different symmetries: hexahedral, octahedral and decahedral. This transition occurs when the density of states at the Fermi level exceeds l/kBT and the discrete energy levels begin to form a quasi-continuous band. The electronic structure is calculated including spd orbitals and spillover effects in a Hubbard Hamiltonian solved within the unrestricted Hartree-Fock approximation. We find that in small clusters (N ≤ 40) the metallic behavior is strongly related to the geometrical structure of the cluster. We compare our results with those coming out of a simple Friedel's model. © 1999 Elsevier Science Ltd. All rights reserved.
Registro:
| Documento: | Artículo |
| Título: | On the metallic behavior of Co clusters |
| Autor: | Aguilera-Granja, F.; Montejano-Carrizales, J.M.; Guevara, J.; Llois, A.M. |
| Filiación: | Instituto de Física, Manuel Sandoval Vattarta U.A.S.L.P., 78000 San Luis Potosí, S.L.P., Mexico Department of Chemistry, Boston University, Boston, MA 02215, United States Departamento de Físico, Comn. Nac. de Ener. Atómica, Avda. del Libertador 8250, 1429 Buenos Aires, Argentina Departamento de Física, Fac. de Ciencias Exactas y Naturales, Ciudad Universitaria, Pab I, 1429 Buenos Aires, Argentina Esc. de Ciencia y Tecnología, University of San Martín, San Andres, Prov. de Buenos Aires, Argentina |
| Palabras clave: | A. Insulators; A. Metals; A. Nanostructures; Approximation theory; Band structure; Cobalt; Computational methods; Electronic density of states; Electronic structure; Fermi level; Nanostructured materials; Phase transitions; Cobalt clusters; Hubbard tight-binding Hamiltonian; Electric insulating materials |
| Año: | 2000 |
| Volumen: | 113 |
| Número: | 3 |
| Página de inicio: | 147 |
| Página de fin: | 151 |
| Título revista: | Solid State Communications |
| Título revista abreviado: | Solid State Commun |
| ISSN: | 00381098 |
| CODEN: | SSCOA |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00381098_v113_n3_p147_AguileraGranja |
Referencias:
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Citas:
---------- APA ----------
Aguilera-Granja, F., Montejano-Carrizales, J.M., Guevara, J. & Llois, A.M. (2000) . On the metallic behavior of Co clusters. Solid State Communications, 113(3), 147-151.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00381098_v113_n3_p147_AguileraGranja [ ]
---------- CHICAGO ----------
Aguilera-Granja, F., Montejano-Carrizales, J.M., Guevara, J., Llois, A.M. "On the metallic behavior of Co clusters" . Solid State Communications 113, no. 3 (2000) : 147-151.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00381098_v113_n3_p147_AguileraGranja [ ]
---------- MLA ----------
Aguilera-Granja, F., Montejano-Carrizales, J.M., Guevara, J., Llois, A.M. "On the metallic behavior of Co clusters" . Solid State Communications, vol. 113, no. 3, 2000, pp. 147-151.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00381098_v113_n3_p147_AguileraGranja [ ]
---------- VANCOUVER ----------
Aguilera-Granja, F., Montejano-Carrizales, J.M., Guevara, J., Llois, A.M. On the metallic behavior of Co clusters. Solid State Commun. 2000;113(3):147-151.Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00381098_v113_n3_p147_AguileraGranja [ ]
