INVESTIGADORES
NIEVA Gladys Leonor
artículos
Título:
Photoexcitation effects in YBa2Cu3Ox
Autor/es:
OSQUIGUIL, E.; MAENHOUDT, M.; WUYTS, B.; BRUYNSERAEDE, Y.; LEDERMAN, D.; NIEVA, G.; GUIMPEL, J.; SCHULLER, IVAN K.
Revista:
JOURNAL OF ALLOYS AND COMPOUNDS
Editorial:
ELSEVIER SCIENCE SA
Referencias:
Año: 1993 vol. 195 p. 667 - 670
ISSN:
0925-8388
Resumen:
We show through photoexcitation experiments carried out on YBa2Cu3Ox c-axis oriented films that photoinduced phenomena are not restricted to insulating samples. Superconducting films with critical temperatures varying between 2 K and 40 K show a clear enhancement of the superconducting transition after illumination. The increase in Tc is accompanied by a corresponding decrease in the resistivity ρ, and an increase in the Hall coefficient RH, indicative of an increased carrier density. Furthermore, the carrier mobility is also affected by illumination. © 1993.
