Rapid thermal annealing of high T/sub c/ superconducting thin films formed by metalorganic deposition

Journal Article · Mon May 09 04:00:00 EDT 1988 · Appl. Phys. Lett.; (United States)

DOI:https://doi.org/10.1063/1.99706· OSTI ID:5418712

Mantese, J V; Hamdi, A H; Micheli, A L; Chen, Y L; Wong, C A; Johnson, J L; Karmarkar, M M; Padmanabhan, K R

Thin-film superconductors of Y-Ba-Cu and Yb-Ba-Cu have been formed by the nonvacuum method of metalorganic deposition (MOD). The films produced in this manner were homogeneous and free of voids and cracks over large dimensions. A two-step rapid thermal annealing of the MOD films, in oxygen, at 850 /sup 0/C for 60 s followed by a second annealing at 920 /sup 0/C for 30 s enhanced grain growth in the films and reduced the effects of substrate interaction. Preferred epitaxial grain growth, in the high T/sub c/ films, with the c axis both perpendicular and parallel to the substrate surface, occurred on <100> SrTiO/sub 3/. Both the Y-Ba-Cu and Yb-Ba-Cu films showed superconducting onset temperatures above 90 K and zero resistance at 86 K.

• Research Organization: Electrical and Electronics Engineering Department, General Motors Research Laboratories, Warren, Michigan 48090-9055
• OSTI ID: 5418712
• Journal Information: Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 52:19; ISSN APPLA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
&amp; Refractories-- Preparation &amp; Fabrication
360202 -- Ceramics
Cermets
&amp; Refractories-- Structure &amp; Phase Studies
360204 -- Ceramics
Cermets
&amp; Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
ANNEALING
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COATINGS
COPPER COMPOUNDS
COPPER OXIDES
CRACKS
CRYSTAL STRUCTURE
DATA
DEPOSITION
EPITAXY
EXPERIMENTAL DATA
FILMS
GRAIN GROWTH
HEAT TREATMENTS
INFORMATION
MICROSTRUCTURE
NUCLEATION
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANOMETALLIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PEROVSKITES
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTORS
SURFACE COATING
THERMODYNAMIC PROPERTIES
THIN FILMS
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
VERY HIGH TEMPERATURE
VOIDS
YTTERBIUM COMPOUNDS
YTTERBIUM OXIDES
YTTRIUM COMPOUNDS
YTTRIUM OXIDES