Biepitaxial YBa2Cu3O7 - x 0-- Delta p Josephson junctions

Biepitaxial YBa2Cu3O7 - x 0-- Delta p Josephson junctions

We present measurements performed on YBa2Cu3O7 - x '0' and '0-- Delta *p' Josephson junctions fabricated using the biepitaxial technique with SrTiO3 as substrate and CeO2 as seed layer. Measurements of the critical current as a function of external magnetic field clearly show com...

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Veröffentlicht in:Superconductor science & technology 2010-03, Vol.23 (3), p.034027-034027
Hauptverfasser: Cedergren, K, Bauch, T, Pettersson, H, Kirtley, J R, Olsson, E, Lombardi, F
Format: Artikel
Sprache:eng
Schlagworte:
BOUNDARIES
COPPER OXIDE
CRYSTAL GROWTH
CRYSTAL STRUCTURE
EPITAXY
GRAIN BOUNDARIES
Josephson junctions
MAGNETIC FIELD
Magnetic fields
Order parameters
PARAMETERS
Seeds
Strontium titanates
SUPERCONDUCTORS
Transport
YBCO superconductors
YTTRIUM OXIDE
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Zusammenfassung:We present measurements performed on YBa2Cu3O7 - x '0' and '0-- Delta *p' Josephson junctions fabricated using the biepitaxial technique with SrTiO3 as substrate and CeO2 as seed layer. Measurements of the critical current as a function of external magnetic field clearly show complementary behavior of the two kinds of junctions. Our results unambiguously show that the d-wave nature of the order parameter dominates the current transport across the junctions despite the faceting on the microscale along the grain boundary line.
ISSN:0953-2048
DOI:10.1088/0953-2048/23/3/034027