| Revue: | Brazilian journal of physics |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000310495 |
| ISSN: | 0103-9733 |
| Autores: | Hevia, Samuel1 Hevia, Samuel2 Ibáñez, Wladimir Segura, Rodrigo Häberle, Patricio |
| Instituciones: | 1Universidad Técnica Federico Santa María, Departamento de Física, Valparaíso. Chile 2Pontificia Universidad Católica de Valparaíso, Instituto de Física, Valparaíso. Chile |
| Año: | 2006 |
| Periodo: | Sep |
| Volumen: | 36 |
| Número: | 3B |
| Paginación: | 894-897 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental |
| Resumen en inglés | Multiwall Carbon Nanotubes (MWCNTs) were synthesized by Chemical Vapor Deposition (CVD). Two different procedures were used to grow MWCNT films roughly, aligned in the direction normal to the SiO2/Si(111) substrate. Inverse Photoemission Spectroscopy measurements, on these samples, show the existence of resonances which could be traced back to a flat graphene sheet. The unoccupied valence band is fairly similar to that shown by graphite except by an additional intensity in the vicinity of the Fermi level. This resonance could be interpreted both as tubes tips end effects or van Hove singularities in the density of states |
| Disciplinas: | Física y astronomía |
| Palabras clave: | Física de materia condensada, Nanotubos, Multicapa de carbono, Espectroscopía de fotoemisión inversa |
| Keyword: | Physics and astronomy, Condensed matter physics, Nanotubes, Carbon multiwall, Inverse photoemission spectroscopy |
| Texte intégral: | Texto completo (Ver HTML) |
