Biepitaxial YBa2Cu3O7 − x 0–π Josephson junctions

We present measurements performed on YBa2Cu3O7-x '0' and '0-pi' 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...

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Veröffentlicht in:Superconductor science & technology 2010-03, Vol.23 (3), p.034027
Hauptverfasser: Cedergren, K, Bauch, T, Pettersson, H, Kirtley, J R, Olsson, E, Lombardi, F
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Sprache:eng
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Zusammenfassung:We present measurements performed on YBa2Cu3O7-x '0' and '0-pi' 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
1361-6668
1361-6668
DOI:10.1088/0953-2048/23/3/034027