AC SUSCEPTIBILITY CHARACTERIZATION OF BI-SR-CA-CU-O(2212) SINGLE-CRYSTALS - ANNEALING EFFECTS

Authors
MORENO AJ LEYVA AG POLLA G LEVY P VEGA D MANGHI E
Citation
Aj. Moreno et al., AC SUSCEPTIBILITY CHARACTERIZATION OF BI-SR-CA-CU-O(2212) SINGLE-CRYSTALS - ANNEALING EFFECTS, Solid state ionics, 99(3-4), 1997, pp. 251-256
Citations number
16
Categorie Soggetti
Physics, Condensed Matter","Chemistry Physical
Journal title
Solid state ionics → ACNP
ISSN journal
01672738
Volume
99
Issue
3-4
Year of publication
1997
Pages
251 - 256
Database
ISI
SICI code
0167-2738(1997)99:3-4<251:ASCOBS>2.0.ZU;2-N
Abstract
Single crystals of Bi2Sr2CaCu2Ox have been grown by directional solidi fication method in order to analyze annealing effects on critical supe rconducting temperature (T-c) by AC susceptibility measurements. Struc tural modifications were studied by X-ray diffraction. A decrease of t he transition width was observed in samples treated in oxygen or argon atmospheres at 500 degrees C for 10 h. Higher T-c values were obtaine d for argon annealings. The magnitude of T-c changes and its correlati on with c lattice parameter is found to be sample-dependent.