d-Wave-induced Josephson current counterflow in YBa2Cu3O7/Nb Zigzag Junctions

H.J.H. Smilde; null Ariando; D.H.A. Blank; G.J. Gerritsma; H. Hilgenkamp; H. Rogalla

doi:10.1103/PhysRevLett.88.057004

d-Wave-induced Josephson current counterflow in YBa₂Cu₃O₇/Nb Zigzag Junctions

H.J.H. Smilde, Ariando, D.H.A. Blank, G.J. Gerritsma, H. Hilgenkamp, H. Rogalla

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Abstract

Well-defined zigzag-shaped ramp-type Josephson junctions between YBa₂Cu₃O₇ and Nb have been studied. The magnetic field dependencies of the critical currents provide evidence for d-wave induced alternations in the direction of the Josephson current between neighboring sides of the zigzag structure. The arrays present controllable model systems to study the influences of π facets in high-angle high- T_c grain boundaries. From the characteristics, we estimate a possible imaginary s-wave admixture to the order parameter of the YBa₂Cu₃O₇ to be below 1%.

Original language	English
Article number	057004
Number of pages	4
Journal	Physical review letters
Volume	88
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevLett.88.057004
Publication status	Published - 2002

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title = "d-Wave-induced Josephson current counterflow in YBa2Cu3O7/Nb Zigzag Junctions",

abstract = "Well-defined zigzag-shaped ramp-type Josephson junctions between YBa2Cu3O7 and Nb have been studied. The magnetic field dependencies of the critical currents provide evidence for d-wave induced alternations in the direction of the Josephson current between neighboring sides of the zigzag structure. The arrays present controllable model systems to study the influences of π facets in high-angle high- Tc grain boundaries. From the characteristics, we estimate a possible imaginary s-wave admixture to the order parameter of the YBa2Cu3O7 to be below 1%.",

author = "H.J.H. Smilde and Ariando and D.H.A. Blank and G.J. Gerritsma and H. Hilgenkamp and H. Rogalla",

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AU - Smilde, H.J.H.

AU - Ariando, null

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AU - Gerritsma, G.J.

AU - Hilgenkamp, H.

AU - Rogalla, H.

PY - 2002

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AB - Well-defined zigzag-shaped ramp-type Josephson junctions between YBa2Cu3O7 and Nb have been studied. The magnetic field dependencies of the critical currents provide evidence for d-wave induced alternations in the direction of the Josephson current between neighboring sides of the zigzag structure. The arrays present controllable model systems to study the influences of π facets in high-angle high- Tc grain boundaries. From the characteristics, we estimate a possible imaginary s-wave admixture to the order parameter of the YBa2Cu3O7 to be below 1%.

U2 - 10.1103/PhysRevLett.88.057004

DO - 10.1103/PhysRevLett.88.057004

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d-Wave-induced Josephson current counterflow in YBa2Cu3O7/Nb Zigzag Junctions

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d-Wave-induced Josephson current counterflow in YBa₂Cu₃O₇/Nb Zigzag Junctions