Quantitative model for the ICR product in d-wave Josephson junctions


Yokoyama, Takehito and Sawa, Yuki and Tanaka, Yukio and Golubov, Alexander A. and Maeda, Atsutaka and Fujimaki, Akira (2007) Quantitative model for the ICR product in d-wave Josephson junctions. Physical Review B: Condensed matter and materials physics, 76 (5). 052508. ISSN 1098-0121

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Abstract:We study theoretically the Josephson effect in d-wave superconductor/diffusive normal metal/insulator/diffusive normal metal/d-wave superconductor (D/DN/I/DN/D) junctions. This model aims to describe practical junctions in high-TC cuprate superconductors, in which the product of the critical Josephson current (IC) and the normal state resistance (R) (the so-called ICR product) is very small compared to the prediction of the standard theory for clean d-wave superconductor/insulator/d-wave superconductor (DID) junctions. We show that the ICR product in D/DN/I/DN/D junctions can be much smaller than that in DID junctions. The proposed theory describes the behavior of ICR products quantitatively in high-TC cuprate junctions.
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Copyright:© 2007 American Physical Society
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Link to this item:http://purl.utwente.nl/publications/59157
Official URL:https://doi.org/10.1103/PhysRevB.76.052508
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