Evidence of enhanced pinning properties in optimally doped Bi2Sr2Ca1-xYxCu2O8+delta single crystals

被引：20

作者：

Villard, G ^{[1
]}

Pelloquin, D ^{[1
]}

Maignan, A ^{[1
]}

Wahl, A ^{[1
]}

机构：

[1] UNIV CAEN, CNRS, URA 1318, F-14050 CAEN, FRANCE

来源：

APPLIED PHYSICS LETTERS | 1996年 / 69卷 / 10期

关键词：

D O I：

10.1063/1.116914

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A comparative study of the magnetic properties of Bi2Sr2Ca1-xYxCu2O8+delta single crystals with different yttrium contents is presented. An optimum in the doping can be reached that corresponds to a high T-c (onset) value (91.5 K) and a high position of the irreversibility line, Moreover, the fishtail feature disappears for this optimally Y doped Bi-2212 crystal due to the increase of the magnetic field dependence of the critical current density, This demonstrates the better pinning efficiency of the crystals with the highest T-c. (C) 1996 American Institute of Physics.

引用

页码：1480 / 1482

页数：3

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