High-quality La3Ga5.5Ta0.5O14 and La3Ga5.5Nb0.5O14 LPE films for oscillators and resonators

High-quality La3Ga5.5Ta0.5O14 and La3Ga5.5Nb0.5O14 LPE films for oscillators and resonators

Single-crystalline La3Ga5.5Ta0.5O14 and La3Ga5.5Nb0.5O14 films were grown by liquid phase epitaxy (LPE) for the first time. Crack-free thin films up to 1.5 x 1.5 cm2 were obtained from a PbO-based flux on X-, Y-, and Z-oriented substrates, by homoepitaxy. Characterization was done by AFM, SEM/EDAX,...

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Veröffentlicht in:Journal of crystal growth 2003-03, Vol.250 (1-2), p.34-40
1. Verfasser: Klemenz, Christine
Format: Artikel
Sprache:eng
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Zusammenfassung:Single-crystalline La3Ga5.5Ta0.5O14 and La3Ga5.5Nb0.5O14 films were grown by liquid phase epitaxy (LPE) for the first time. Crack-free thin films up to 1.5 x 1.5 cm2 were obtained from a PbO-based flux on X-, Y-, and Z-oriented substrates, by homoepitaxy. Characterization was done by AFM, SEM/EDAX, XRD and optical microscopy. The morphology of X- and Y-oriented LGT films show a similar growth habit as previously found for LGS LPE films. X-LGT films are extremely flat over macroscopic dimensions. On Y-oriented films, (macro)steps and facets are formed, and growth hillocks and spirals were observed on Z-oriented LGN films.
ISSN:0022-0248
DOI:10.1016/S0022-0248(02)02211-X