Growth of LGSO: Ce crystals by the Czochralski method

Journal Article · Tue Dec 15 00:00:00 EST 2009 · Crystallography Reports

DOI:https://doi.org/10.1134/S1063774509070207· OSTI ID:22051263

Sidletskiy, O Ts; Grynyov, B V; Kurtsev, D A ^[1]; Baumer, V N; Belikov, K N; Shtitelman, Z V ^[2]; Tkachenko, S A; Zelenskaya, O V; Starzhinsky, N G; Tarasov, V A ^[1]

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1. National Academy of Sciences of Ukraine, Institute for Scintillation Materials (Ukraine)
2. National Academy of Sciences of Ukraine, Scientific and Technological Corporation 'Institute for Single Crystals' (Ukraine)

Single crystals of Lu{sub 2x}Gd{sub 2-2x}SiO{sub 5}: Ce (0 < x < 1) compounds with different atomic ratios Lu/(Lu + Gd) have been grown by the Czochralski method. It has been shown that a change in the spatial symmetry from P2{sub 1}/c to C2/c in the course of substitution of lutetium for gadolinium occurs at the ratio Lu/(Lu + Gd) = 0.1. The lattice thus formed with symmetry C2/c in the structure of Lu{sub 2x}Gd{sub 2-2x}SiO{sub 5}: Ce crystals favors the maximum possible incorporation of Ce{sup 3+} ions into the sevenfold-coordinated position with respect to oxygen. This explains the substantial improvement of the scintillation characteristics of the grown crystals.

• OSTI ID: 22051263
• Journal Information: Crystallography Reports, Vol. 54, Issue 7; Other Information: Copyright (c) 2009 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7745
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CERIUM COMPOUNDS
CERIUM IONS
CRYSTAL GROWTH
CZOCHRALSKI METHOD
GADOLINIUM COMPOUNDS
LUTETIUM SILICATES
MONOCLINIC LATTICES
MONOCRYSTALS
SYMMETRY