Published October 1, 2007 | Version v1
Journal article Metadata-only

Transmission electron microscopy studies of YBCO films fabricated by advanced TFA-MOD process

Creators

  • 1. Department of Materials Physics and Chemistry, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819 0395 (Japan)
  • 2. Department of Materials Science and Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395 (Japan)
  • 3. HVEM Laboratory, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395 (Japan)
  • 4. Superconductivity Research Laboratory, ISTEC, 1-10-13 Shinonome, Koto-ku, Tokyo 135-0062 (Japan)

Description

The advanced metal organic deposition using trifluoroacetates (TFA-MOD) is one of the most promising methods for producing superconducting coated conductors. In order to form highly grain aligned YBa2Cu3O7-δ (Y123) films with high JC, it is important to control the microstructures of the films. In the present work, Y123 films were grown by the advanced TFA-MOD method on CeO2 layered LaAlO3 (LAO) substrates. Quenched films were prepared by cooling rapidly during the crystallization stage, and their cross-sectional microstructures were investigated by transmission electron microscopy (TEM). The bright-field images (BFIs) showed existence of some grains, precipitates and their interfaces in the film. Selected area electron diffraction patterns (SAEDPs) were taken from various regions, and a-axis and/or c-axis-oriented structures, amorphous structures, etc. were observed. In addition, Y123 grains, BaF2, CuO and Y2Cu2O5 grains were clarified by the scanning transmission electron microscopy-energy dispersive X-ray spectroscopy (STEM-EDS) analyses

Availability note (English)

Available from http://dx.doi.org/10.1016/j.physc.2007.04.289

Additional details

Identifiers

DOI
10.1016/j.physc.2007.04.289;
PII
S0921-4534(07)00964-1;

Publishing Information

Journal Title
Physica. C, Superconductivity
Journal Volume
463-465
Journal Page Range
p. 717-721
ISSN
0921-4534
CODEN
PHYCE6

Conference

Title
19. international symposium on superconductivity
Acronym
ISS 2006
Dates
30 Oct - 1 Nov 2006
Place
Nagoya (Japan)

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
39073602
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ALUMINIUM COMPOUNDS; BARIUM COMPOUNDS; BARIUM FLUORIDES; CERIUM OXIDES; COPPER COMPOUNDS; COPPER OXIDES; CRITICAL CURRENT; CRYSTALLIZATION; CURRENT DENSITY; DEPOSITION; ELECTRON DIFFRACTION; HIGH-TC SUPERCONDUCTORS; INTERFACES; LANTHANUM COMPOUNDS; MICROSTRUCTURE; ORGANOMETALLIC COMPOUNDS; OXYGEN COMPOUNDS; PRECIPITATION; SUBSTRATES; SUPERCONDUCTING FILMS; TRANSMISSION ELECTRON MICROSCOPY; X-RAY SPECTROSCOPY; YTTRIUM COMPOUNDS
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; BARIUM COMPOUNDS; CERIUM COMPOUNDS; CHALCOGENIDES; COHERENT SCATTERING; COPPER COMPOUNDS; CURRENTS; DIFFRACTION; ELECTRIC CURRENTS; ELECTRON MICROSCOPY; FILMS; FLUORIDES; FLUORINE COMPOUNDS; HALIDES; HALOGEN COMPOUNDS; MICROSCOPY; ORGANIC COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PHASE TRANSFORMATIONS; RARE EARTH COMPOUNDS; SCATTERING; SEPARATION PROCESSES; SPECTROSCOPY; SUPERCONDUCTORS; TRANSITION ELEMENT COMPOUNDS; TYPE-II SUPERCONDUCTORS

Optional Information

Copyright
Copyright (c) 2007 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.