Journal Article

FZJ-2022-04624

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Influence of growth temperature on the pinning landscape of YBa 2 Cu 3 O 7− δ films grown from Ba-deficient solutions

Alcalà, J. (Corresponding author) ; Ternero, P. ; Pop, C. ; Piperno, L. ; Ricart, S. ; Mestres, N. ; Puig, T. ; Obradors, X. ; Meledin, A.FZJ*RWTH* ; Celentano, G. ; Palau, A.

2022
IOP Publ. Bristol

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Please use a persistent id in citations: http://hdl.handle.net/2128/33542  doi:10.1088/1361-6668/ac8580

Abstract: Cuprate coated conductors are promising materials for the development of large-scale applications, having superior performance over other superconductors. Tailoring their vortex pinning landscape through nanostructure engineering is one of the major challenges to fulfill the specific application requirements. In this work, we have studied the influence of the growth temperature on the generation of intrinsic pinning defects in YBa2Cu3O7−δ films grown by chemical solution deposition using low Ba precursor solutions. We have analysed the critical current density as a function of the temperature, applied magnetic field magnitude and orientation, Jc(T,H,θ), to elucidate the nature and strength of pinning sites and correlate the microstructure of the films with their superconducting performance. An efficient pinning landscape consisting of stacking faults and associated nanostrain is naturally induced by simply tuning the growth temperature without the need to add artificial pinning sites. Samples grown at an optimized temperature of 750 °C show very high self-field Jc values correlated with an overdoped state and improved Jc(T,H,θ) performances.

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Contributing Institute(s):

1. Materialwissenschaft u. Werkstofftechnik (ER-C-2)

Research Program(s):

1. 5353 - Understanding the Structural and Functional Behavior of Solid State Systems (POF4-535) (POF4-535)
2. ESTEEM3 - Enabling Science and Technology through European Electron Microscopy (823717) (823717)

Appears in the scientific report 2022

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; JCR ; National-Konsortium ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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