Influence of the Gd Concentration on Superconducting Properties in Second-Generation High-Temperature Superconducting Wires

Influence of the Gd Concentration on Superconducting Properties in Second-Generation High-Temperature Superconducting Wires

Systematic studies of second-generation high-temperature superconducting wires with Gd excess relative to the stoichiometric GdBa2Cu3O7composition are reported. It has been revealed that filamentary defects in the form of non-superconducting Gd2CuO4phase located along the ab plane are formed during...

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Veröffentlicht in:Pisʹma v žurnal êksperimentalʹnoj i teoretičeskoj fiziki 2023-12, Vol.118 (7-8 (10)), p.590-595
Hauptverfasser: Degtyarenko, P. N., Sadakov, A. V., Ovcharov, A. V., Degtyarenko, A. Yu, Gavrilkin, S. Yu, Sobolevskiy, O. A., Tsvetkov, A. Yu, Massalimov, B. I.
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Sprache:eng
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Zusammenfassung:Systematic studies of second-generation high-temperature superconducting wires with Gd excess relative to the stoichiometric GdBa2Cu3O7composition are reported. It has been revealed that filamentary defects in the form of non-superconducting Gd2CuO4phase located along the ab plane are formed during film growth. These inclusions lead to a change in the pinning mechanism of the vortex structure, due to which the peak of the critical current at +15% Gd is clearly observed.
ISSN:0370-274X
DOI:10.31857/S1234567823200077