Identifying the superconducting pairing state of high-{ital T}{sub {ital c}} oxides by the Josephson effect

Journal Article · Tue Aug 01 04:00:00 EDT 1995 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.52.3772· OSTI ID:83951

Zhang, W ^[1]

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1. National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093 (China)

The Josephson junction consisting of high-{ital T}{sub {ital c}} superconductor, normal metal, and high-{ital T}{sub {ital c}} superconductor is studied microscopically using the quasiclassical theory. For a {ital d}-wave pairing state and certain crystal orientations of the two superconductors, the main Shapino step is found at {ital V}={ital h}{nu}/4{ital e} and the diffraction pattern has the form {ital I}{sub max}({Phi})={ital I}{sub {ital c}}{vert_bar}sin(2{pi}{Phi}/{Phi}{sub 0})/(2{pi}{Phi}/{Phi}{sub 0}){vert_bar}. The experimental verification of this property can be used to distinguish unambiguously the possible {ital d}-wave pairing state in the high-{ital T}{sub {ital c}} superconductors from the conventional {ital s}-wave or extended {ital s}-wave pairing states. Our result is also discussed in comparison with those obtained from other types of Josephson junctions.

• OSTI ID: 83951
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 5 Vol. 52; ISSN 0163-1829; ISSN PRBMDO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
D WAVES
HIGH-TC SUPERCONDUCTORS
JOSEPHSON EFFECT
JOSEPHSON JUNCTIONS
PAIRING INTERACTIONS
S WAVES