Subsurface correlations in the {ital d}-wave Josephson junction

Journal Article · Fri Sep 01 04:00:00 EDT 1995 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.52.6729· OSTI ID:115830

Kuklov, A B ^[1]

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1. Department of Physics, The City College of the CUNY, New York, New York 10031 (United States)

A prediction is made for the Josephson vortex structure in the {ital d}-wave Josephson junction (JJ) for those (special) orientations of the JJ insulating plane when the critical current is expected to be suppressed significantly (or zero) in accordance with the {ital d}{sub {ital x}}{sup 2}{minus}{ital y}{sup 2} symmetry. It is shown that a spontaneous admixture of the {ital d}{sub {ital x}{ital y}} wave function in the vicinity of the JJ insulating plane makes the critical current be finite. A conventional magnetic vortex in such a {ital d}-wave uniform and plane JJ, demonstrating no time-reversal symmetry breaking, splits into two parts, each carrying half of the magnetic flux. The explicit solution for such a pair as well as the lower critical field are obtained. The pair size diverges logarithmically as soon as the JJ orientation approaches the special one. Possible ways of experimental observation of this effect are discussed.

• OSTI ID: 115830
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 9 Vol. 52; ISSN PRBMDO; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CORRELATIONS
CRITICAL CURRENT
D WAVES
HIGH-TC SUPERCONDUCTORS
JOSEPHSON JUNCTIONS
MAGNETIC FLUX
ORDER PARAMETERS
PAIRING INTERACTIONS
SURFACE PROPERTIES