High misfit epitaxial growth: Superconducting YBa sub 2 Cu sub 3 O sub 7 minus sub x thin films on (100)BaF sub 2 substrates

Journal Article · Mon Sep 16 00:00:00 EDT 1991 · Applied Physics Letters; (United States)

DOI:https://doi.org/10.1063/1.106295· OSTI ID:5342083

Wang, S Z; Xiong, G C; He, Y M; Luo, B; Su, W; Yao, S D ^[1]

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1. Department of Physics, Peking University, Beijing 100871 (People's Republic of China)

{ital In} {ital situ} epitaxial growth of YBa{sub 2}Cu{sub 3}O{sub 7{minus}{ital x}} superconducting thin films on (100)BaF{sub 2} substrates has been successful by an off-axis dc planar magnetron sputtering method. The zero-resistance temperatures of these thin films are about 81--84 K with transition width of 1.5 K. The characteristics of the films were examined by x-ray diffraction, reflection high energy electron diffraction, Rutherford backscattering spectroscopy ion channeling techniques, and scanning electron microscopy. The experimental results suggest that BaF{sub 2} is a promising material as substrates or buffer layers for the epitaxial growth of high {ital T}{sub {ital c}} superconducting thin films, especially in high frequency applications. Discussions on the heteroepitaxy of the YBCO/BaF{sub 2} system are propounded.

• OSTI ID: 5342083
• Journal Information: Applied Physics Letters; (United States), Vol. 59:12; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BARIUM OXIDES
DISLOCATIONS
COPPER OXIDES
YTTRIUM OXIDES
BARIUM FLUORIDES
EPITAXY
HIGH-TC SUPERCONDUCTORS
IN-SITU PROCESSING
ION CHANNELING
RUTHERFORD SCATTERING
SCANNING ELECTRON MICROSCOPY
SUPERCONDUCTING FILMS
X-RAY DIFFRACTION
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CHALCOGENIDES
CHANNELING
COHERENT SCATTERING
COPPER COMPOUNDS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
DIFFRACTION
ELASTIC SCATTERING
ELECTRON MICROSCOPY
FILMS
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
LINE DEFECTS
MICROSCOPY
OXIDES
OXYGEN COMPOUNDS
PROCESSING
SCATTERING
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
360202* - Ceramics
Cermets
& Refractories- Structure & Phase Studies