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Atomic force microscopy and Raman spectroscopy of Pb1−xSnxTe surfaces polished after treatment with H2O2–HBr–ethylene glycol etchants

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The morphology and microstructure of the Pb1−xSnxTe surfaces polished by the H2O2–HBr–ethylene glycol etchants have been investigated using atomic force and electron microscopy techniques. Treatment of the Pb0.8Sn0.2Te crystal surfaces with new etchant mixtures allows to obtain ultra-smooth surfaces Ra < 1 nm. The single crystal surfaces after chemical–mechanical and chemical-dynamic polishing by the bromine emerging compositions has been studied using metallography and profilometry. The structural perfection and chemical composition of the Pb1−xSnxTe surfaces polished by the chemical treatment have been determined by X-ray analysis, scanning electron microscopy, and Raman spectroscopy.

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Correspondence to G. P. Malanych.

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Malanych, G.P., Kolomys, O.F., Korchovyi, A.A. et al. Atomic force microscopy and Raman spectroscopy of Pb1−xSnxTe surfaces polished after treatment with H2O2–HBr–ethylene glycol etchants. Appl Nanosci 10, 2717–2722 (2020).

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