Electrical properties of 45° grain boundaries of epitaxial YBaCuO, dominated by crystalline microstructure and d-wave-symmetry

C. A. Copetti; F. Rüders; B. Oelze; Ch Buchal; B. Kabius; J. W. Seo

doi:10.1016/0921-4534(95)00489-0

Electrical properties of 45° grain boundaries of epitaxial YBaCuO, dominated by crystalline microstructure and d-wave-symmetry

C. A. Copetti, F. Rüders, B. Oelze, Ch Buchal, B. Kabius, J. W. Seo

Materials Research Institute (MRI)

Research output: Contribution to journal › Article › peer-review

68 Scopus citations

Abstract

We show that the microstructure of 45° grain boundaries in epitaxial YBaCuO together with the d_x²-y² symmetry of the superconducting wave function accounts for the measured magnetic field modulation patterns of the critical currents. Our results resolve the conflict between contradictory observations of other authors and unfold a consistent picture of d-wave-symmetry of the YBaCuO superconducting ground state. Evidence for currentless junctions with a phase difference of π is given.

Original language	English (US)
Pages (from-to)	63-70
Number of pages	8
Journal	Physica C: Superconductivity and its applications
Volume	253
Issue number	1-2
DOIs	https://doi.org/10.1016/0921-4534(95)00489-0
State	Published - Oct 20 1995

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1016/0921-4534(95)00489-0

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abstract = "We show that the microstructure of 45° grain boundaries in epitaxial YBaCuO together with the dx2-y2 symmetry of the superconducting wave function accounts for the measured magnetic field modulation patterns of the critical currents. Our results resolve the conflict between contradictory observations of other authors and unfold a consistent picture of d-wave-symmetry of the YBaCuO superconducting ground state. Evidence for currentless junctions with a phase difference of π is given.",

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T1 - Electrical properties of 45° grain boundaries of epitaxial YBaCuO, dominated by crystalline microstructure and d-wave-symmetry

AU - Copetti, C. A.

AU - Rüders, F.

AU - Oelze, B.

AU - Buchal, Ch

AU - Kabius, B.

AU - Seo, J. W.

PY - 1995/10/20

Y1 - 1995/10/20

N2 - We show that the microstructure of 45° grain boundaries in epitaxial YBaCuO together with the dx2-y2 symmetry of the superconducting wave function accounts for the measured magnetic field modulation patterns of the critical currents. Our results resolve the conflict between contradictory observations of other authors and unfold a consistent picture of d-wave-symmetry of the YBaCuO superconducting ground state. Evidence for currentless junctions with a phase difference of π is given.

AB - We show that the microstructure of 45° grain boundaries in epitaxial YBaCuO together with the dx2-y2 symmetry of the superconducting wave function accounts for the measured magnetic field modulation patterns of the critical currents. Our results resolve the conflict between contradictory observations of other authors and unfold a consistent picture of d-wave-symmetry of the YBaCuO superconducting ground state. Evidence for currentless junctions with a phase difference of π is given.

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Electrical properties of 45° grain boundaries of epitaxial YBaCuO, dominated by crystalline microstructure and d-wave-symmetry

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