Monotonic dependence of j(c) on magnetic field in twinned crystals of YBa2Cu3O7-delta and ErBa2Cu3O7-delta

被引：15

作者：

Daumling, M ^{[1
]}

Erb, A ^{[1
]}

Walker, E ^{[1
]}

Genoud, JY ^{[1
]}

Flukiger, R ^{[1
]}

机构：

[1] UNIV GENEVA,DEPT PHYS MAT CONDENSEE,CH-1211 GENEVA 4,SWITZERLAND

来源：

PHYSICA C | 1996年 / 257卷 / 3-4期

关键词：

D O I：

10.1016/0921-4534(95)00768-7

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have investigated the magnetic hysteresis and in particular the ''fishtail'' anomaly in crystals of YBa2Cu3O7-delta and ErBa2Cu3O7-delta, oxygenated in various fashions. For a high-pressure (100 bar) oxygenation this anomaly disappears, but only at high annealing temperature (700 degrees C). It is concluded that for proper oxygenation the diffusion distance for oxygen must be larger than the size of the crystals, leading to a more homogeneous oxygen distribution throughout the crystal.

引用

页码：371 / 374

页数：4

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