ELLIPSOMETRIC MEASUREMENT OF THE SUPERCONDUCTING TRANSITION IN A YBA2CU3O7-GAMMA AB-ORIENTED FILM AT A WAVELENGTH OF 119 MU-M

Authors
SUSHKOV AB SHULGA SV TISHCHENKO EA
Citation
Ab. Sushkov et al., ELLIPSOMETRIC MEASUREMENT OF THE SUPERCONDUCTING TRANSITION IN A YBA2CU3O7-GAMMA AB-ORIENTED FILM AT A WAVELENGTH OF 119 MU-M, JETP letters, 58(9), 1993, pp. 696-700
Citations number
14
Categorie Soggetti
Physics
Journal title
JETP letters → ACNP
ISSN journal
00213640
Volume
58
Issue
9
Year of publication
1993
Pages
696 - 700
Database
ISI
SICI code
0021-3640(1993)58:9<696:EMOTST>2.0.ZU;2-H
Abstract
The first measurements of the temperature dependence of the complex di electric function epsilon(ab)(omega0,T) for an ab-oriented (with the c axis perpendicular to the film) YBa2Cu3O7-delta film on a single-crys tal SrTiO3 substrate are presented. The measurements were obtained usi ng far-infrared ellipsometry. The temperature behavior of epsilon(ab)( omega0,T) qualitatively conforms to that predicted by the model of the strong electron-phonon coupling. No peaks below T(c) were observed at the frequency which was used.