MODULATION MEASUREMENTS OF YBA2CU3O7-X OPTICAL REFLECTIVITY USING A THERMAL-WAVE TECHNIQUE

Citation
Im. Fishman et al., MODULATION MEASUREMENTS OF YBA2CU3O7-X OPTICAL REFLECTIVITY USING A THERMAL-WAVE TECHNIQUE, Physica. C, Superconductivity, 249(3-4), 1995, pp. 304-308
Citations number
20
Categorie Soggetti
Physics, Applied
ISSN journal
09214534
Volume
249
Issue
3-4
Year of publication
1995
Pages
304 - 308
Database
ISI
SICI code
0921-4534(1995)249:3-4<304:MMOYOR>2.0.ZU;2-R
Abstract
We have measured the differential optical reflectivity (lambda = 0.78 mm) of YBa2Cu3O7-x single crystals in the temperature range of 20-300 K using a thermal wave technique. A sharp signal maximum with a temper ature width similar to 10 K was observed below T-c, and was attributed to the electronic contribution of the optical reflectivity. It is con cluded that the two components of the differential reflectivity signal are related to accumulation of, the superconducting phase and tempera ture variation of the electron-scattering time.