Theory of the electrical transport in tilted layered superconducting Josephson junctions

Year: 2012

Authors: Nappi C., De Nicola S., Adamo M., Sarnelli E.

Autors Affiliation: CNR Ist Cibernet E Caianiello, I-80078 Naples, Italy; CNR Ist Nazl Ott, I-80078 Naples, Italy; INFN Sez Napoli, I-80126 Naples, Italy.

Abstract: We present a theory of the Josephson effect in a twofold-tilted Josephson junction made by d-wave anisotropic layered superconductors. We find the appearance of an intrinsic electrical resistance that arises from the misalignment of the superconductive planes (the CuO2 planes in YBCO) in the two electrodes. This intrinsic contribution to the tunnel barrier has several nontrivial consequences. The result is relevant for understanding the electric transport properties of [100] tilt and [100] tilt-tilt Josephson junctions based on d-wave superconductors.

Journal/Review: PHYSICAL REVIEW B

Volume: 86 (2)      Pages from: 24517-1  to: 24517-5

More Information: The financial contribution of EU NMP.2011.2.2-6 IRON-SEA Project No. 283141 is gratefully acknowledged. This work has been partially supported by EU STREP project MIDAS, Macroscopic Interference Devices for Atomic and Solid State Physics: Quantum Control of Supercurrents. We thank Mario Cuoco, Paola Gentile, and Canio Noce for helpful discussions on this topic.
KeyWords: Grain-boundary Junctions; Anisotropic Superconductors; Icrn-products; Bicrystals; States; Yba2cu3o7-delta; Currents
DOI: 10.1103/PhysRevB.86.024517

Citations: 6
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