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Proceedings Paper

Bi-2223/Bi-2234 superlattice: its structural analysis and superconducting transition temperature
Author(s): Takeshi Hatano; Kazuo Kadowaki; Keikichi G. Nakamura
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Paper Abstract

(2223)2/(2234)2 superlattices have been synthesized by three target sequential sputter deposition of BiO, SrCu0.5O1.5 and CaCuO2 layers. The superstructure formed was analyzed in atomic layer scale by using some X-ray diffraction technique, such as interference of X-ray specular reflection, observation of the Laue's function pattern and a quantitative analysis of intergrowth. The superlattice, thus confirmed in the atomic layer scale, has a superconducting transition temperature (Tc) as high as the average of monophasic 2223 and 2234 films. The resistivity showed a similar angular dependence on the magnetic field orientation even at the temperature higher than the Tc of 2234. These results will be discussed by the hole diffusion and/or the proximity effect between the 2223 and 2234 layers.

Paper Details

Date Published: 29 June 1994
PDF: 4 pages
Proc. SPIE 2157, Superconducting Superlattices and Multilayers, (29 June 1994); doi: 10.1117/12.179173
Show Author Affiliations
Takeshi Hatano, National Research Institute for Metals (Japan)
Kazuo Kadowaki, National Research Institute for Metals (Japan)
Keikichi G. Nakamura, National Research Institute for Metals (Japan)

Published in SPIE Proceedings Vol. 2157:
Superconducting Superlattices and Multilayers
Ivan Bozovic, Editor(s)

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