Effect of proton irradiation on the fluctuation-induced magnetoconductivity of FeSe1-xTex thin films

被引：11
|
作者：
Ahmad, D. [1 ,2 ]
Choi, W. J. [1 ]
Seo, Y. I. [1 ]
Seo, Sehun [3 ]
Lee, Sanghan [3 ]
Park, Tuson [2 ]
Mosqueira, J. [4 ]
Gu, Genda [5 ]
Kwon, Yong Seung [1 ]
机构：
[1] Daegu Gyeongbuk Inst Sci & Technol, Dept Emerging Mat Sci, Daegu, South Korea
[2] Sungkyunkwan Univ, Creat Res Ctr Quantum Mat & Superconduct, Suwon, South Korea
[3] Gwangju Inst Sci & Technol, Sch Mat Sci & Engn, Gwangju, South Korea
[4] Univ Santiago de Compostela, LBTS, Dept Fis Particulas, E-15782 Santiago De Compostela, Spain
[5] Brookhaven Natl Lab, Dept Condensed Matter Phys & Mat Sci, Upton, NY 11973 USA
来源：
NEW JOURNAL OF PHYSICS | 2017年 / 19卷
关键词：
fluctuations; magnetoconductivity; lattice strain; FeSe1-xTex thin film; SUPERCONDUCTIVITY;
D O I：
10.1088/1367-2630/aa76ad
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The influence of proton irradiation on the fluctuation-induced magnetoconductivity of high quality FeSe1-xTex (x = 0.4, 0.55) (FST) thin films has been investigated. The measurements were performed with magnetic fields up to 13 T applied in the two main crystal directions. The results were interpreted in terms of the Ginzburg-Landau approach for three-dimensional materials under a total-energy cutoff. The analysis shows that properly-tuned proton irradiation does not appreciably affect fundamental superconducting parameters like the T-c value, the upper critical fields or the anisotropy. This has important consequences from the point of view of possible applications due to the enhancement of vortex pinning induced by irradiation.
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页数：9
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