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LiNbO 3 layer growth in a LiVO 3 high temperature solution
Author(s) -
Hemmerling J.,
Fischer K.,
Sinn E.
Publication year - 1981
Publication title -
kristall und technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0023-4753
DOI - 10.1002/crat.19810160404
Subject(s) - liquidus , hexagonal crystal system , materials science , deposition (geology) , phase (matter) , layer (electronics) , shear (geology) , constant (computer programming) , mineralogy , crystallography , chemistry , nanotechnology , composite material , geology , computer science , structural basin , paleontology , organic chemistry , programming language
Homoepitaxy of LiNbO 3 takes a successful course in high temperature solutions (HTS) with LiVO 3 as a solvent. In order to optimize the deposition process the phase correlations in the pseudobinary system LiNbO 3 ‐LiVO 3 were specified by means of DTA. At the liquidus temperatures the HTS with concentrations of 15 to 40 mole % have an approximately constant shear viscosity of η ≈ 13.5 mPa · s, similary to solvents containing lead compounds. Always smooth LPE‐layers grow on singular {1 1 02}‐substrates. Surfaces of all other orientations were found to be rough because rhomboedric faces of LiNbO 3 form in the stable state. On the negative polarized (000 1 )‐face epitaxy is still possible, however, on the opposite (0001)‐face only a hexagonal cellular structure is observed because the singular faces develop, exclusively.