Title :
Materials analysis of yttrium-barium-copper-oxide by micro-Raman spectroscopy and optical microscopy
Author :
Long, J.M. ; Finlayson, T.R. ; Mernagh, T.P.
Author_Institution :
Sch. of Eng. & Technol., Deakin Univ., Geelong, Vic., Australia
fDate :
6/1/1999 12:00:00 AM
Abstract :
Optical microscopy has proven to be a useful technique for obtaining general, qualitative information from the entire surface of YBa/sub 2/Cu/sub 3/O/sub 7-x/ samples. Micro-Raman spectroscopy is well suited for routine microstructural analysis of YBCO superconductors. We demonstrate the complementary use of both techniques for the analysis of polycrystalline YBCO. Observed colors of polarisation on YBCO were correlated with information provided by Raman spectroscopy on individual grains to deduce microstructural characteristics across the whole surface of a sample.
Keywords :
Raman spectra; barium compounds; crystal microstructure; high-temperature superconductors; optical microscopy; yttrium compounds; YBa/sub 2/Cu/sub 3/O/sub 7/; grain orientation; micro-Raman spectroscopy; microstructural analysis; optical microscopy; Atomic measurements; Australia; Optical materials; Optical microscopy; Optical scattering; Optical surface waves; Polarization; Raman scattering; Spectroscopy; Yttrium barium copper oxide;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
