Superconductivity of powder-in-tube Sr0.6K0.4Fe2As2 wires

被引：62

作者：

Qi, Yanpeng ^{[1
]}

Zhang, Xianping ^{[1
]}

Gao, Zhaoshun ^{[1
]}

Zhang, Zhiyu ^{[1
]}

Wang, Lei ^{[1
]}

Wang, Dongliang ^{[1
]}

Ma, Yanwei ^{[1
]}

机构：

[1] Chinese Acad Sci, Key Lab Appl Superconduct, Inst Elect Engn, Beijing 100190, Peoples R China

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2009年 / 469卷 / 13期

关键词：

iron-based superconductor; Superconducting wire;

D O I：

10.1016/j.physc.2009.03.008

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Nb-sheathed Sr0.6K0.4Fe2As2 superconducting wires have been fabricated using the powder-in-tube (PIT) method for the first time and the superconducting properties of the wires have been investigated. The transition temperature (T-c) of the Sr0.6K0.4Fe2As2 wires is confirmed to be as high as 35.3 K. Most importantly, Sr0.6K0.4Fe2As2 wires exhibit a very weak J(c)-field dependence behavior even the temperature is very close to T-c. The upper critical field H-c2(0) value can exceed 140T, surpassing those of MgB2 and all the low temperature superconductors. Such high H-c2 and superior J(c)-field performance make the 122 phase SrKFeAs wire conductors a powerful competitor potentially useful in very high field applications. (c) 2009 Elsevier B.V. All rights reserved.

引用

页码：717 / 720

页数：4

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