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Proceedings Paper

Electromagnetic and microstructural properties of pure c-axis twist Bi2Sr2CaCu2O8+(delta) bicrystal junctions
Author(s): Y. N. Tsay; Qiang Li; Y. Zhu; M. Suenaga; G. D. Gu; N. Koshizuka
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Paper Abstract

Bulk Bi2Sr2CaCu2O8 + (delta ) (Bi2212) bicrystals containing a single high quality twist grain boundary junction were prepared in order to investigate the orbital symmetry of the superconducting order parameter in highly anisotropic Bi-based high temperature superconductors. The misorientation angles of the bicrystals ranged from 0 degrees to 180 degrees. The microstructure in the vicinity of the junction was characterized using high- resolution, nano-probe analytical microscopy. We fond that some high angle twist junctions were able to carry a critical current density similar to their constituent single crystals. These results cannot be interpreted in terms of a pure dx2-y2-wave order parameter for superconducting Bi2212.

Paper Details

Date Published: 9 December 1998
PDF: 8 pages
Proc. SPIE 3480, Superconducting Superlattices II: Native and Artificial, (9 December 1998); doi: 10.1117/12.332458
Show Author Affiliations
Y. N. Tsay, Brookhaven National Lab. (United States)
Qiang Li, Brookhaven National Lab. (United States)
Y. Zhu, Brookhaven National Lab. (United States)
M. Suenaga, Brookhaven National Lab. (United States)
G. D. Gu, Superconductivity Research Lab. (Japan)
N. Koshizuka, Superconductivity Research Lab. (Japan)

Published in SPIE Proceedings Vol. 3480:
Superconducting Superlattices II: Native and Artificial
Ivan Bozovic; Davor Pavuna, Editor(s)

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