Abstract:Large size high quality LiNbO 3 single crystals were grown successfully by tilting-mirror-type floating zone (TMFZ) technique. The grown crystals were characterized by X-ray diffraction, etch pits density measurement, Impedance analysis, Vibrating sample magnetometry (VSM) and UV-Visible spectrometry. The effect of mirror tilting during growth on the structural, electrical, optical properties and defect density of the LiNbO 3 crystals were investigated. It was found that the defect density in the crystals redu… Show more
“…This removal is attributed to a cut-off of the light from the area. Thus, the growth of many functional materials has been successful using this technique [97][98][99][100][101][102][103]. Particularly, I mention a significant achievement of successful growth for the incongruent material LiCoO 2 which was inclusion-free using the tilted mirror.…”
Section: Tilting Mirrors From the Horizontal Configurationsmentioning
This review describes the recent progress of floating-zone techniques for bulk single-crystal growth. The most crucial point of the crucible-free technique is to keep the molten zone stable. It has been investigated and reported to yield a steeper temperature gradient at the liquid–solid interface along the growth direction and a homogeneous molten liquid along the rotation axis. This article overviews several recent achievements starting from the conventional setup, particularly for lamps equipped in horizontal or vertical configurations, tilting mirrors, shielding the irradiation, and filament sizes for the optical-lamp floating-zone furnaces. Also, the recently advancing laser-heated floating-zone furnaces are described. Throughout the article, the author emphasizes that the floating-zone technique has been a powerful tool for crystal growth since the 1950s with its roots in the zone-melting method, and it has still been advancing for further materials’ growth such as quantum materials with modern scientific concepts.
“…This removal is attributed to a cut-off of the light from the area. Thus, the growth of many functional materials has been successful using this technique [97][98][99][100][101][102][103]. Particularly, I mention a significant achievement of successful growth for the incongruent material LiCoO 2 which was inclusion-free using the tilted mirror.…”
Section: Tilting Mirrors From the Horizontal Configurationsmentioning
This review describes the recent progress of floating-zone techniques for bulk single-crystal growth. The most crucial point of the crucible-free technique is to keep the molten zone stable. It has been investigated and reported to yield a steeper temperature gradient at the liquid–solid interface along the growth direction and a homogeneous molten liquid along the rotation axis. This article overviews several recent achievements starting from the conventional setup, particularly for lamps equipped in horizontal or vertical configurations, tilting mirrors, shielding the irradiation, and filament sizes for the optical-lamp floating-zone furnaces. Also, the recently advancing laser-heated floating-zone furnaces are described. Throughout the article, the author emphasizes that the floating-zone technique has been a powerful tool for crystal growth since the 1950s with its roots in the zone-melting method, and it has still been advancing for further materials’ growth such as quantum materials with modern scientific concepts.
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