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Structural and vibrational properties of PVT grown BiTeCl microcrystals

Atuchin V. V., Gavrilova T. A., Kokh K. A., Kuratieva N. V., Pervukhina N. V., Surovtsev N. V., Tereshchenko O. E.

© 2019 IOP Publishing Ltd. High-quality BiTeCl microcrystals are grown by the physical vapor transport (PVT) method without using a foreign transport agent. The plate-like microcrystals with a developed (0001) surface are up to ∼500 μm in diameter. The grown crystal phase composition was identified by the x-ray single crystal structure analysis in space group P6 3 mc: a = 4.2475(6) Å, c = 12.409(2) Ǻ, Z = 2 (R = 0.0343). The BiTeCl microcrystal phase purity was verified by Raman microspectrometry under excitation at λ = 632.8 and 532.1 nm.