Molecular beam epitaxy growth of a layered cuprate having a multiple fluorite-type block for use in trilayer junctions

(Pb2Cu)Sr2(Eu,Ce)nCu2Oy: n=3–8 (Pb-32n2 phase) has been synthesized by sequential deposition using the molecular beam epitaxy technique. This layered cuprate having a multiple-stacked fluorite-type block is thought to be suitable for use in trilayer Josephson junctions, from the viewpoints of atomic...

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Bibliographic Details
Published in:Applied physics letters 1996-04, Vol.68 (17), p.2430-2432
Main Authors: Ikegawa, Sumio, Motoi, Yuichi
Format: Article
Language:English
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Summary:(Pb2Cu)Sr2(Eu,Ce)nCu2Oy: n=3–8 (Pb-32n2 phase) has been synthesized by sequential deposition using the molecular beam epitaxy technique. This layered cuprate having a multiple-stacked fluorite-type block is thought to be suitable for use in trilayer Josephson junctions, from the viewpoints of atomic arrangement at the superconductor-insulator interface and the need for an atomically flat thin insulator. The thickness of the fluorite block, which will act as an intra-cell barrier, has been controlled up to 2.2 nm (n=8). Pb-3272/Pb-3212 epitaxial superlattices have also been prepared. The two-dimensional growth with the growth unit of a unit cell is observed by in situ reflection high-energy electron diffraction.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.116157