THE SUPERCONDUCTING PROPERTIES OF YBA2CU4O8 SINGLE-CRYSTALS UNDER HYDROSTATIC-PRESSURE (UP TO 9.5 GPA)

被引：22
作者：
BRAITHWAITE, D
CHOUTEAU, G
MARTINEZ, G
HODEAU, JL
MAREZIO, M
KARPINSKI, J
KALDIS, E
RUSIECKI, S
JILEK, E
机构：
[1] UNIV JAQUES FOURIER,CRISTALLOG LAB,CNRS,F-38042 GRENOBLE,FRANCE
[2] SWISS FED INST TECHNOL,FESTKORPERPHYS LAB,CH-8093 ZURICH,SWITZERLAND
[3] AT&T BELL LABS,MURRAY HILL,NJ 07974
来源：
PHYSICA C | 1991年 / 178卷 / 1-3期
关键词：
Y2BA4CU6+NO14+N FAMILY; TC; DEPENDENCE; TEMPERATURE; 80-K;
D O I：
10.1016/0921-4534(91)90160-Z
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
dT(c)/dP of YBa2Cu4O8 single crystals has been measured up to 9 GPa under hydrostatic pressure. The large and positive initial value (dT(c)/dP)0 = 5.5 K/GPa is confirmed. T(c)(P) saturates above 5 GPa. Dramatic changes, in the T(c)(P) behavior are observed when the pressure is non-hydrostatic. They are caused by the twinning of the crystals. Opposite to the case of YBa2Cu3O7, the results for hydrostatic pressure are well reproducible. This is probably due to the well defined oxygen stoichiometry of YBa2Cu4O8 single crystals.
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收藏
页码：75 / 80
页数：6
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