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Superconductivity of Bi sub 2 Sr sub 2 Ca sub n minus 1 Cu sub n O sub y ( n =2, 3, 4, and 5) thin films prepared in situ by molecular-beam epitaxy technique

Journal Article · · Journal of Applied Physics; (United States)
DOI:https://doi.org/10.1063/1.350342· OSTI ID:5206280
; ;  [1]
  1. Department of Applied Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113 (Japan)
Preparation techniques and properties of Bi-Sr-Ca-Cu-O thin films are reported. The optimization of the substrate temperature in ozone atmosphere and the shuttering of molecular beams on an atomic scale enabled us to prepare thin films of Bi{sub 2}Sr{sub 2}Ca{sub {ital n}{minus}1}Cu{sub {ital n}}O{sub {ital y}} ({ital n}=1, 2, 3, 4, and 5). These films showed superconducting transition with the exception of the {ital n}=1 phase and resistivities showed strong temperature dependence without heat treatment after deposition. Reflection high-energy electron diffraction showed sharp streaks, which suggest the growth of films with flat surface on an atomic scale.
OSTI ID:
5206280
Journal Information:
Journal of Applied Physics; (United States), Journal Name: Journal of Applied Physics; (United States) Vol. 70:8; ISSN 0021-8979; ISSN JAPIA
Country of Publication:
United States
Language:
English