Title

Josephson (001) tilt grain boundary junctions of high-temperature superconductors

Authors

Authors

R. A. Klemm;G. B. Arnold

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

Int. J. Mod. Phys. B

Keywords

superconducting order parameter; Josephson tunneling; BI2SR2CACU2O8+DELTA; SYMMETRY; Physics, Applied; Physics, Condensed Matter; Physics, Mathematical

Abstract

We calculate the Josephson critical current I, across in-plane (001) tilt grain boundary junctions of high-temperature superconductors. We assume the Fermi surface has either an electron-doped form, or one of three hole-doped forms, and either random or specular tunneling across the junctions. We find that in-plane 'phase-sensitive' experiments are consistent with our results for the electron-doped superconductors. For the hole-doped superconductors, however, the results depend strongly upon the details of both the Fermi surface topology and the nature of the tunneling, and are therefore considerably less robust than has generally been believed. Hence, the tricrystal, tetracrystal, and interferometry experiments on hole-doped high-temperatures superconductors are unreliable, and should be redesigned.

Journal Title

International Journal of Modern Physics B

Volume

21

Issue/Number

18-19

Publication Date

1-1-2007

Document Type

Article; Proceedings Paper

Language

English

First Page

3194

Last Page

3198

WOS Identifier

WOS:000251989900026

ISSN

0217-9792

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