High current-carrying capability in c-axis-oriented superconducting MgB2 thin films -: art. no. 087002

被引：202

作者：

Kim, HJ ^{[1
]}

Kang, WN ^{[1
]}

Choi, EM ^{[1
]}

Kim, MS ^{[1
]}

Kim, KHP ^{[1
]}

Lee, S ^{[1
]}

机构：

[1] Pohang Univ Sci & Technol, Dept Phys, Natl Creat Res Initiat Ctr Superconduct, Pohang 790784, South Korea

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 87卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.87.087002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In high-quality c-axis-oriented MgB2 thin films, we observed high critical current densities (J(c)) of similar to 16 MA/cm(2) at 15 K under self-fields comparable to those of cuprate high-temperature superconductors. The extrapolated value of J(c) at 5 K was estimated to be similar to 40 MA/cm(2). For a magnetic field of 5 T, a J(c) of similar to0.1 MA/cm(2) was detected at 15 K, suggesting that this compound would be a very promising candidate for practical applications at high temperature and lower power consumption. The vortex-glass phase is considered to be a possible explanation for the observed high current-carrying capability.

引用

页码：87002 / 1

页数：4

共 26 条

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[2] Boron isotope effect in superconducting MgB2 [J].