Accession Number : ADA325388

Title :   Substrate/Buffer Layer Compounds in the Calcium Antimonate System for Growth of Epitaxial YBCO Films.

Descriptive Note : Technical rept. Apr-Dec 96,

Corporate Author : ARMY RESEARCH LAB FORT MONMOUTH NJ

Personal Author(s) : Tidrow, Steven C. ; Tauber, Arthur ; Finnegan, Robert D. ; Wilber, William D.

PDF Url : ADA325388

Report Date : MAY 1997

Pagination or Media Count : 11

Abstract : Using pulsed laser deposition (PLD), epitaxial thin films of Yttrium-Barium-Copper-Oxide (YBCO) have been grown on films of compounds in the calcium antimonate system, Ca2MeSbO6, where Me=Al, Ga, Sc, In, Y and La. Bulk targets of compounds were prepared from precursor oxides and carbonates using solid state reaction at temperatures between 1400 and 1500 deg C. Epitaxial relationships were determined from x-ray diffraction data. All antimonates investigated demonstrated (001) epitaxy and should support (001) growth of YBCO. Dielectric constants and losses of bulk samples were measured using cavity perturbation techniques at x band. As reported, all antimonates exhibit low dielectric constants and low losses.

Descriptors :   *BUFFERS, *CALCIUM, *LAYERS, *EPITAXIAL GROWTH, *SUBSTRATES, *TARGETS, *YTTRIUM COMPOUNDS, *CHEMICAL COMPOUNDS, *ANTIMONATES, REACTION KINETICS, PRECURSORS, THIN FILMS, X RAY DIFFRACTION, SINGLE CRYSTALS, MICROWAVE EQUIPMENT, CAVITIES, PULSED LASERS, DIELECTRIC PROPERTIES, LOW LOSS, OXIDES, COPPER, SAMPLING, PERTURBATIONS, HIGH TEMPERATURE SUPERCONDUCTORS, BARIUM, X BAND, SOLID STATE PHYSICS, CARBONATES.

Subject Categories : Inorganic Chemistry
      Crystallography
      Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE