ROLE OF OXYGEN-CONTENT ON DIMENSIONALITY AND PINNING OF EPITAXIAL BSCCO-2212

Citation
B. Camarota et al., ROLE OF OXYGEN-CONTENT ON DIMENSIONALITY AND PINNING OF EPITAXIAL BSCCO-2212, Nuovo cimento della Societa italiana di fisica. D, Condensed matter,atomic, molecular and chemical physics, biophysics, 16(10-11), 1994, pp. 1947-1951
Citations number
19
Categorie Soggetti
Physics
ISSN journal
03926737
Volume
16
Issue
10-11
Year of publication
1994
Pages
1947 - 1951
Database
ISI
SICI code
0392-6737(1994)16:10-11<1947:ROOODA>2.0.ZU;2-F
Abstract
The effect of the oxygen content on the superconducting properties of BSCCO-2212 epitaxial films has been investigated by means of magnetic measurements. The oxygen content was changed by oxidizing and reducing thermal treatments. With decreasing the oxygen content T-c increases (T-c = 77 K for annealing in oxygen; T-c = 84 K in air, T-c = 95 K in argon), but J(c) decreases. Moreover, the results indicate that the po sition of the irreversibility line and the value of H-3D-2D crossover field are ruled by the oxygen content through the associated changes i n the anisotropy factor gamma.