Epitaxial growth of YBa sub 2 Cu sub 3 O sub 7 minus. delta. thin films on LiNbO sub 3 substrates

Journal Article · Mon Sep 18 00:00:00 EDT 1989 · Applied Physics Letters; (USA)

DOI:https://doi.org/10.1063/1.102470· OSTI ID:5650648

Lee, S G; Koren, G; Gupta, A; Segmuller, A; Chi, C C ^[1]

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1. IBM Thomas J. Watson Research Center, P.O. Box 218, Yorktown Heights, New York 10598 (US)

{ital In} {ital situ} epitaxial growth of YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} thin films on {ital Y}-cut LiNbO{sub 3} substrates using a standard laser ablation technique is reported. Resistance of the films shows a normal metallic behavior and a very sharp ({lt}1 K) superconducting transition with {ital T}{sub {ital c}}({ital R}=0) of 92 K. High critical current density of {ital J}{sub {ital c}}(77 K)=2{times}10{sup 5} A/cm{sup 2} is observed, which is in accordance with epitaxial growth. Film orientation observed from x-ray diffraction spectra indicates that the {ital c} axis is normal to the substrate plane and the {ital a} axis is at 45{degree} to the (11.0) direction of the hexagonal lattice of the substrate with two domains in mirror image to the (110) plane.

• OSTI ID: 5650648
• Journal Information: Applied Physics Letters; (USA), Journal Name: Applied Physics Letters; (USA) Vol. 55:12; ISSN APPLA; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201 -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABLATION
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COHERENT SCATTERING
COPPER COMPOUNDS
COPPER OXIDES
CRITICAL CURRENT
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CURRENT DENSITY
CURRENTS
DATA
DIFFRACTION
ELECTRIC CONDUCTIVITY
ELECTRIC CURRENTS
ELECTRICAL PROPERTIES
ELECTROMAGNETIC RADIATION
EPITAXY
EXPERIMENTAL DATA
FABRICATION
FILMS
HEXAGONAL LATTICES
INFORMATION
LASER RADIATION
LITHIUM COMPOUNDS
LOW TEMPERATURE
NIOBATES
NIOBIUM COMPOUNDS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RADIATIONS
REFRACTORY METAL COMPOUNDS
SCATTERING
SUPERCONDUCTING FILMS
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
THIN FILMS
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
VAPOR PHASE EPITAXY
X-RAY DIFFRACTION
YTTRIUM COMPOUNDS
YTTRIUM OXIDES