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

被引:29
|
作者
PAULIUS, LM [1 ]
LEE, BW [1 ]
MAPLE, MB [1 ]
TSAI, PK [1 ]
机构
[1] UNIV CALIF SAN DIEGO,INST PURE & APPL PHYS SCI,LA JOLLA,CA 92093
来源
PHYSICA C | 1994年 / 230卷 / 3-4期
关键词
D O I
10.1016/0921-4534(94)90837-0
中图分类号
O59 [应用物理学];
学科分类号
摘要
We present a reliable method for growing single crystals of Y1-xPrxBa2Cu3O7-delta high-T(c) superconductors in ZrO2 crucibles. This method results in crystals with greatly improved superconducting properties compared to crystals grown with the previously reported methods which use 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-susceptibility measurements, electrical-resistivity measurements, and electron microprobe 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.
引用
收藏
页码:255 / 262
页数:8
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