Title
Josephson (001) tilt grain boundary junctions of high-temperature superconductors
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
ISSN
0217-9792
Recommended Citation
"Josephson (001) tilt grain boundary junctions of high-temperature superconductors" (2007). Faculty Bibliography 2000s. 7305.
https://stars.library.ucf.edu/facultybib2000/7305
Comments
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