The low thermal gradient Czochralski crystal growth and microstructural properties of a Pb2MoO5(20−1) cleaved surface

V. V. Atuchin; N. V. Ivannikova; A. I. Komonov; N. V. Kuratieva; I. D. Loshkarev; N. V. Pervukhina; L. D. Pokrovsky; V. N. Shlegel

doi:10.1039/C5CE00309A

The low thermal gradient Czochralski crystal growth and microstructural properties of a Pb₂MoO₅(20−1) cleaved surface†

V. V. Atuchin,*^abc N. V. Ivannikova,^d A. I. Komonov,^e N. V. Kuratieva,^fg I. D. Loshkarev,^h N. V. Pervukhina,^f L. D. Pokrovsky^a and V. N. Shlegel^d

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* Corresponding authors

^a Laboratory of Optical Materials and Structures, Institute of Semiconductor Physics, SB RAS, Novosibirsk 630090, Russia
E-mail: atuchin@isp.nsc.ru
Fax: +7 (383) 3332771
Tel: +7 (383) 3308889

^b Functional Electronics Laboratory, Tomsk State University, Tomsk 634050, Russia

^c Laboratory of Semiconductor and Dielectric Materials, Novosibirsk State University, Novosibirsk 630090, Russia

^d Laboratory of Crystal Growth, Institute of Inorganic Chemistry, SB RAS, Novosibirsk 630090, Russia

^e Laboratory of Physics and Technology of Three-Dimensional Nanostructures, Institute of Semiconductor Physics, SB RAS, Novosibirsk 630090, Russia

^f Laboratory of Crystal Chemistry, Institute of Inorganic Chemistry, SB RAS, Novosibirsk 630090, Russia

^g Laboratory of Methods for the Determination of Composition and Structure of Functional Materials, Novosibirsk State University, Novosibirsk 630090, Russia

^h Laboratory of Molecular Beam Epitaxy of Elementary Semiconductors and A3B5 Compounds, Institute of Semiconductor Physics, SB RAS, Novosibirsk 630090, Russia

Abstract

Optical quality Pb₂MoO₅ single crystals were grown by the Low Thermal Gradient Czochralski (LTG Cz) technique. The resulting Pb₂MoO₅ crystals had diameters of 40–50 mm and lengths of ~100 mm. The phase composition of the grown crystals was identified by X-ray single crystal structure analysis; the space group is C2/m and a = 14.2221(11), b = 5.7852(5), c = 7.3262(6) Å, β = 114.168(2)° and Z = 4 (R₁ = 0.0336). Pb₂MoO₅(20−1) substrates were prepared by cleavage, and the surface properties were evaluated by RHEED and AFM. The superposition of wide Kikuchi lines and crystal reflexes was found by RHEED. The AFM measurements indicate a surface roughness as low as ~0.2 nm. Thus, atomically smooth surfaces of Pb₂MoO₅ were formed by cleavage.

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Article information

DOI: https://doi.org/10.1039/C5CE00309A
Article type: Paper
Submitted: 10 Feb 2015
Accepted: 24 Apr 2015
First published: 24 Apr 2015

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CrystEngComm, 2015,17, 4512-4516

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The low thermal gradient Czochralski crystal growth and microstructural properties of a Pb₂MoO₅(20−1) cleaved surface

V. V. Atuchin, N. V. Ivannikova, A. I. Komonov, N. V. Kuratieva, I. D. Loshkarev, N. V. Pervukhina, L. D. Pokrovsky and V. N. Shlegel, CrystEngComm, 2015, 17, 4512 DOI: 10.1039/C5CE00309A

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