Published August 14, 1989 | Version v1
Journal article

As-grown superconducting Bi-Sr-Ca-Cu-O thin films by coevaporation

  • 1. Resources and Environment Protection Research Laboratories, NEC Corporation, 4-1-1 Miyazaki, Miyamae-ku, Kawasaki 213, Japan (Japan)
  • 2. Fundamental Research Laboratories, NEC Corporation, 4-1-1 Miyazaki, Miyamae-ku, Kawasaki 213, Japan

Description

Superconducting Bi-Sr-Ca-Cu-O thin films have been prepared on (100) MgO substrates at about 600 degree C by coevaporation. The c-axis lattice constant of this system was controlled to the values of 24--43 A by changing film composition. Superconducting transition temperatures of these films were affected by substrate temperature and by a post-deposition annealing at a low temperature. The highest zero resistance temperature (Tc,zero) of the as-grown Bi2(Sr,Ca)3Cu2Ox film was 79 K. The best Bi2(Sr, Ca)4Cu3Ox film showed an onset temperature of 105 K and Tc,zero zero of 78 K after annealing at 400 degree C for 1 h

Additional details

Publishing Information

Journal Title
Applied Physics Letters
Journal Volume
55
Journal Issue
7
Series
Appl. Phys. Lett.
Journal Page Range
702-704
ISSN
0003-6951
CODEN
APPLA