Defects in Detwinned LaGaO_{3} Substrates

• Authors: K. Mazur , J. Fink-Finowicki , M. Berkowski , N. Schell
• Languages of publication: EN

Abstracts

EN

Single crystals of lanthanum gallate would be the suitable substrate for YBaCuO films except for the phase transition and the tendency to twinning existing in this material. However, by appropriate choice of growth conditions in the Czochralski method, it is possible to grow single crystal of LaGaO_{3} with low density of twin boundaries. Special stress and temperature treatment can then be applied to such materials to remove majority of existing twins. The substrates were examined by X-ray topography before and after detwinning and the surface was scanned with a profilometer.

Keywords

EN

61.72.Mm; 68.35.Bs

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1997
• Volume: 92
• Issue: 1
• Pages: 205-208

Dates

published

1997-07

Contributors

author

K. Mazur

• Institute of Electronic Materials Technology, Wólczyńska 133, 01-919 Warsaw, Poland

author

J. Fink-Finowicki

• Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warsaw, Poland

author

M. Berkowski

• Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warsaw, Poland

author

N. Schell

• Institut für Ionenstrahlphysik und Materialforschung, Forschungszentrum Rossendorf, 01314 Dresden, Germany