Superconducting properties of melt-textured Nd1+xBa2-xCu3Oy prepared in air

被引：25

作者：

Hu, AM

Zhao, ZX

Wu, MZ

Wende, C

Strasser, T

Jung, B

Bruchlos, G

Gawalek, W

Goernert, P

机构：

[1] CHINESE ACAD SCI,INST PHYS,NATL LAB SUPERCONDUCT,BEIJING 100080,PEOPLES R CHINA

[2] SURATECH GMBH,D-07745 JENA,GERMANY

来源：

PHYSICA C | 1997年 / 278卷 / 1-2期

关键词：

melt-textured materials; Nd1+xBa2-xCu3Oy; superconducting properties;

D O I：

10.1016/S0921-4534(97)00093-2

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

High T-c melt-textured Nd1+xBa2-xCu3Oy bulk samples have been prepared through a newly developed melt process in air. Some important superconducting properties of melt-textured Nd1+xBa2-xCu3Oy are measured. The critical temperature of the obtained sample was 93 K. The trapped magnetic field mapping shows that the diameter of a single domain can reach 1 cm. The critical current density J(c) values are 2.4 x 10(4) A/cm(2) in 0 T at 77 K and 1.7 x 10(4) A/cm(2) in 1 T at 77 K. No pronounced fishtail effect is observed in the hysteresis (M-H) loop. The maximum trapped magnetic field of a single domain consisting of two grains is 101 mT. These results show that the new melt process is comparable with the previously reported processes of melt-textured Nd1+xBa2-xCu3Oy. (C) 1997 Elsevier Science B.V.

引用

页码：43 / 48

页数：6

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