Thermally activated flux flow in superconducting epitaxial FeSe0.6Te0.4 thin film

被引：28

作者：

Ahmad, D. ^{[1
]}

Choi, W. J. ^{[1
]}

Seo, Y. I. ^{[1
]}

Seo, Sehun ^{[2
]}

Lee, Sanghan ^{[2
]}

Kwon, Yong Seung ^{[1
]}

机构：

[1] DGIST, Dept Emerging Mat Sci, Daegu 42988, South Korea

[2] Sch Mat Sci & Engn, GIST, Gwangju 81005, South Korea

来源：

RESULTS IN PHYSICS | 2017年 / 7卷

关键词：

Thermally activated flus flow; Apparent activation energy; FeSe0.6Te0.4 thin film; PHASE-DIAGRAM;

D O I：

10.1016/j.rinp.2016.11.054

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The thermally activated flux flow effect has been studied in epitaxial FeSe0.6Te0.4 thin film grown by a PLD method through the electrical resistivity measurement under various magnetic fields for B//c and B//ab. The results showed that the thermally activated flux flow effect is well described by the nonlinear temperature-dependent activation energy. The evaluated apparent activation energy U-0(B) is one order larger than the reported results and showed the double-linearity in both magnetic field directions. Furthermore, the FeSe0.6Te0.4 thin film shows the anisotropy of 5.6 near T-c and 2D-like superconducting behavior in thermally activated flux flow region. In addition, the vortex glass transition and the temperature dependence of the high critical fields were determined. (C) 2017 The Authors. Published by Elsevier B. V. This is an open access article under the CC BY-NC-ND license.

引用

页码：16 / 20

页数：5

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