NDLI: Radiation effects in high-temperature composite superconductors

Content Provider	Springer Nature Link
Author	Troitskii, A. V. Demikhov, T. E. Antova, L. Kh. Didyk, A. Yu. Mikhailova, G. N.
Copyright Year	2016
Abstract	We investigate how irradiation with high-energy ions (167-MeV $^{132}$Xe$^{27+}$, 107-MeV $^{84}$Kr$^{17+}$, and 48-MeV $^{40}$Ar$^{8+}$) and 2.5-MeV protons affects the critical parameters of high-temperature superconductor tapes based on YBa$_{2}$Cu$_{3}$O$_{7–x }$ and GdBa$_{2}$Cu$_{3}$O$_{7–x }$ compounds. The ion ranges in the multilayer structures under study and the thermal regimes of the irradiated samples are calculated using SRIM and thermal-peak models. The calculated results make it possible to estimate the size of radiation-induced defects which serve as the pinning centers of Abrikosov vortices. The performed investigations enable us to reveal that, in the irradiated structures, an increase in the critical current, improvement in the adhesion between the superconducting layer and the substrate, and a reduction in internal stresses are observed under exposure to low levels of Ar- and Kr-ion irradiation. The critical current and the critical temperature decrease at higher fluences and, finally, the phenomenon of superconductivity disappears if the fluence continues to increase. In the case of 2.5-MeV proton irradiation, the radiation resistance of the GdBa$_{2}$Cu$_{3}$O$_{7–x }$ samples is found to be higher than that of the YBa$_{2}$Cu$_{3}$O$_{7–x }$ tapes.
Starting Page	381
Ending Page	392
Page Count	12
File Format	PDF
ISSN	10274510
Journal	Journal of Surface Investigation. X-ray, Synchrotron and Neutron Techniques
Volume Number	10
Issue Number	2
e-ISSN	18197094
Language	English
Publisher	Pleiades Publishing
Publisher Date	2016-05-15
Publisher Place	Moscow
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	2G high-temperature superconductor tapes ion and proton irradiation defects pinning of Abrikosov vortices critical current critical temperature adhesion Surfaces and Interfaces, Thin Films
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology Surfaces, Coatings and Films

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