Abstract
The diffusive-reflectance (30°) IR spectroscopy was used to explore IR-optical properties of needle-like SbSI (antimony sulphoiodide) and SbSI:Cl (chloride modified) crystals and μ-crystals (powders). It turned out to be possible to follow paraelectric-ferroelectric (PE-FE) phase transition influence on IR-spectrum as well as to observe the effect of Cl introduction into SbSI structure. Anisotropy in the water adsorption was also observed for unmodified SbSI.
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