Junction to Probe Antiphase-Wave Pairing in Iron Pnictide Superconductors
Open Access
- 10 November 2009
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 103 (20), 207001
- https://doi.org/10.1103/physrevlett.103.207001
Abstract
Josephson junctions between a FeAs-based superconductor with antiphase -wave pairing and a conventional -wave superconductor are studied. The translational invariance in a planar junction between a single crystal pnictide and an aluminum metal greatly enhances the relative weight of electron pockets in the pnictide to the critical current. In a wide doping region of the pnictide, a planar and a point contact junction have opposite phases, which can be used to design a trijunction ring with phase to probe the antiphase pairing.
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