| Revista: | Brazilian journal of physics |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000310513 |
| ISSN: | 0103-9733 |
| Autores: | Herrera, William J1 Niño, J. Virgilio |
| Instituciones: | 1Universidad Nacional de Colombia, Departamento de Física, Bogotá. Colombia |
| Año: | 2006 |
| Periodo: | Sep |
| Volumen: | 36 |
| Número: | 3B |
| Paginación: | 1092-1096 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental, aplicado |
| Resumen en inglés | Through the analytic solutions of the Bogoliubov de Gennes (BdG) equations the effect of a static and homogeneous magnetic field applied parallel to the interface of an NIS (N: Normal metal, S: superconductor and I: Insulator) junction on the differential conductance is calculated. For a d xy - symmetry we obtain zero bias conductance peak that can be split by a magnetic field. The shift of the zero bias conductance peak depends on the spread (beta) of the tunneling electrons in k space, on the magnitude of the applied field H and on the ratio between the Fermi energy of the superconductor and the normal region, E FS/E FN. Finally we estimate the minimum value of the magnetic field, Hmin, that splits the zero bias conductance peak. In general Hmin depends on beta, E FS/E FN, the strength of the insulating barrier Z and on the temperature T |
| Disciplinas: | Física y astronomía |
| Palabras clave: | Física de materia condensada, Pico de connductancia, Superconductividad, Campo magnético |
| Keyword: | Physics and astronomy, Condensed matter physics, Conductance peak, Superconductivity, Magnetic field |
| Texto completo: | Texto completo (Ver HTML) |
