Preparation and magnetic properties of Pb2Sr2Y1-xCaxCu3O8+delta

被引：1

作者：

Lethen, J. ^{[1
]}

Frank, H. ^{[1
]}

Winkeler, L. ^{[1
]}

Guentherodt, G. ^{[1
]}

机构：

[1] Rhein Westfal TH Aachen, Inst Phys 2, D-52056 Aachen, Germany

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1994年 / 235-40卷

关键词：

D O I：

10.1016/0921-4534(94)90968-7

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Polycrystalline Pb2Sr2Y1-xCaxCu3O8+delta (PSYCCO) samples have been prepared without precursor (x=0.3-0.6). The samples exhibit a metallic normal-state conductivity, and the highest T-c(R=0) achieved is 70K. Regarding anisotropy, SQUID-magnetometry demonstrates the intermediate position of PSYCCO between YBCO and Bi-2223. The critical current density (J(c) = 10(5) Acm(-2) at 50K for H=1kOe) shows for 0.2 < T/T-c < 0.7 a flatter temperature dependence compared to polycrystalline Bi-2223. In fields of H=10kOe, the irreversibility line (T-irr/T-c = 0.6) is shifted to higher temperatures compared to Bi-2212 (T-irr/T-c = 0.45).

引用

页码：2883 / 2884

页数：2

共 4 条

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