PREPARATION AND CHARACTERIZATION OF Y1-XPRXBA2CU3O7-DELTA SINGLE-CRYSTALS

Authors
PAULIUS LM LEE BW MAPLE MB TSAI PK
Citation
Lm. Paulius et al., PREPARATION AND CHARACTERIZATION OF Y1-XPRXBA2CU3O7-DELTA SINGLE-CRYSTALS, Physica. C, Superconductivity, 230(3-4), 1994, pp. 255-262
Citations number
30
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
230
Issue
3-4
Year of publication
1994
Pages
255 - 262
Database
ISI
SICI code
0921-4534(1994)230:3-4<255:PACOYS>2.0.ZU;2-D
Abstract
We present a reliable method for growing single crystals of Y1-xPrxBa2 Cu3O7-delta high-T(c) superconductors in ZrO2 crucibles. This method r esults in crystals with greatly improved superconducting properties co mpared to crystals grown with the previously reported methods which us e Al2O3 crucibles. We describe techniques for crystals growth in both Al2O3 and ZrO2 crucibles using an excess of BaCO3 and CuO as the flux. The crystals were characterized by means of DC magnetic-susceptibilit y measurements, electrical-resistivity measurements, and electron micr oprobe analysis. The effects of Al contamination on the conditions for crystal growth and on the superconducting properties of the crystals are found to be quite significant.