Oxygen Annealing of GdBa2Cu3O7−[Formula Omitted] Superconducting Thin Films: Influence of Annealing Time

Oxygen Annealing of GdBa2Cu3O7−[Formula Omitted] Superconducting Thin Films: Influence of Annealing Time

GdBa2Cu3O7−[Formula Omitted] (GdBCO) superconducting thin films, grown by Pulsed Laser Deposition (PLD) on MgO(100) single crystals are oxygen annealed using two different approaches: in-situ (oxygen annealing in PLD chamber) and ex-situ (oxygen annealing in tubular furnace). Their structural and tr...

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Veröffentlicht in:IEEE transactions on applied superconductivity 2024-01, Vol.34 (3), p.1
Hauptverfasser: Popov, Ruslan, Hanisch, Jens, Holzapfel, Bernhard
Format: Artikel
Sprache:eng
Schlagworte:
Annealing furnaces
Critical current density
Oxygen
Pulsed laser deposition
Pulsed lasers
Single crystals
Superconductivity
Thin films
Transport properties
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Zusammenfassung:GdBa2Cu3O7−[Formula Omitted] (GdBCO) superconducting thin films, grown by Pulsed Laser Deposition (PLD) on MgO(100) single crystals are oxygen annealed using two different approaches: in-situ (oxygen annealing in PLD chamber) and ex-situ (oxygen annealing in tubular furnace). Their structural and transport properties are investigated in relation to annealing time ( t ann) at 450 [Formula Omitted]. In-situ annealed GdBCO thin films require at least 15 min of annealing to achieve high in-field critical current densities ( J c), while ex-situ annealed samples achieve high in-field J c already after 5 min of oxygen annealing at 450 [Formula Omitted] and 1 bar of oxygen pressure.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2023.3345265