Structural and vibrational properties of PVT grown BiTeCl microcrystals
© 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.