| Revista: | Brazilian journal of physics |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000329455 |
| ISSN: | 0103-9733 |
| Autores: | Weisz, J.F1 |
| Instituciones: | 1Instituto de Desarrollo Tecnológico para la Industria Química, Santa Fe. Argentina |
| Año: | 2009 |
| Periodo: | Dic |
| Volumen: | 39 |
| Número: | 4 |
| Paginación: | 715-717 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental |
| Resumen en inglés | The resistivity measured in two-dimensional MOSFET geometry is modeled by considering that the resistivity is a function of the temperature and the areal density of charges (electrons or holes). The logistics differential equation is proposed for the behaviour of the resistivity as a function of temperature, so that the two phases are obtained in a natural manner. At low temperatures, the Drude model behaviour is assumed for the resistivity as a function of density. Two characteristics then follow in a natural manner: The existance of a characteristic temperature for resistivity as a function of temperature, and the symmetry relationship. If the magnetic field is incorporated into the Drude model, reasonable results are obtained for the qualitative behaviour of resistivity for weak fields |
| Disciplinas: | Física y astronomía, Matemáticas |
| Palabras clave: | Física, Física de materia condensada, Matemáticas aplicadas, Transición metal-aislante, Ecuación de logística |
| Keyword: | Physics and astronomy, Mathematics, Condensed matter physics, Physics, Applied mathematics, Metal-insulator transition, Logistics equation |
| Texto completo: | Texto completo (Ver HTML) |
