Biepitaxial YBa2Cu3O7-x 0-pi Josephson junctions
Journal article, 2010

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.

Author

Karin Cedergren

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Thilo Bauch

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Henrik Pettersson

Chalmers, Applied Physics, Microscopy and Microanalysis

J. R. Kirtley

Stanford University

Eva Olsson

Chalmers, Applied Physics, Microscopy and Microanalysis

Floriana Lombardi

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Superconductor Science and Technology

0953-2048 (ISSN) 1361-6668 (eISSN)

Vol. 23 Article Number: 034027-

Subject Categories

Condensed Matter Physics

DOI

10.1088/0953-2048/23/3/034027