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

Autor: D Ahmad, W J Choi, Y I Seo, Sehun Seo, Sanghan Lee, Tuson Park, J Mosqueira, Genda Gu, Yong Seung Kwon
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: New Journal of Physics, Vol 19, Iss 9, p 093004 (2017)
Druh dokumentu: article
ISSN: 1367-2630
DOI: 10.1088/1367-2630/aa76ad
Popis: The influence of proton irradiation on the fluctuation-induced magnetoconductivity of high quality FeSe _1− _x Te _x ( 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.
Databáze: Directory of Open Access Journals