In-field performance and flux pinning mechanism of pulsed laser deposition grown BaSnO3/GdBa2Cu3O7–δ nanocomposite coated conductors by SuperOx | Zendy

Lao M | Zendy; Roland Willa | Zendy; Alexander Meledin | Zendy; Hannes Rijckaert | Zendy; Vsevolod N. Chepikov | Zendy; S Lee | Zendy; Valery Petrykin | Zendy; Isabel Van Driessche | Zendy; Alexander Molodyk | Zendy; B. Holzäpfel | Zendy; Jens Hänisch | Zendy

Open Access

In-field performance and flux pinning mechanism of pulsed laser deposition grown BaSnO₃/GdBa₂Cu₃O_7–δ nanocomposite coated conductors by SuperOx

Author(s) -

Lao M,

Roland Willa,

Alexander Meledin,

Hannes Rijckaert,

Vsevolod N. Chepikov,

S Lee,

Valery Petrykin,

Isabel Van Driessche,

Alexander Molodyk,

B. Holzäpfel,

Jens Hänisch

Publication year - 2019

Publication title -

superconductor science and technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.033

H-Index - 105

eISSN - 1361-6668

pISSN - 0953-2048

DOI - 10.1088/1361-6668/ab2a95

Subject(s) - materials science , flux pinning , pulsed laser deposition , pinning force , condensed matter physics , electrical conductor , vortex , transmission electron microscopy , field (mathematics) , scaling , nanocomposite , superconductivity , deposition (geology) , high temperature superconductivity , nanotechnology , critical current , thin film , composite material , physics , thermodynamics , geometry , paleontology , mathematics , sediment , biology , pure mathematics

We investigate the field, angle and temperature dependence of the full-width critical current, I c , of pulsed laser deposition-grown GdBa 2 Cu 3 O 7 coated conductors with and without additional 6 mol% BaSnO 3 (BSO) nanoparticles fabricated by SuperOx. The transport characteristics measured from 7 to 77 K and in applied magnetic fields of up to 6 T are complemented by scanning transmission electron microscopy. This combined approach allows for further insight into the vortex pinning mechanism and helps with understanding the enhancement in I c . An exemplary scaling of the pinning force curves versus field at different temperatures confirms the additional contribution to pinning by the BSO nanoparticles. Through the temperature dependence of I c , the weak and strong pinning contributions are determined: strong pinning dominates over almost the entire temperature range especially near the matching field of 1 T, where the largest enhancement in I c is achieved.

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