Effect of pressure on Raman spectra of SnS2 single crystals |
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Authors: | A N Utyuzh Yu A Timofeev and G N Stepanov |
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Abstract: | The 2H polytype of a SnS2 layered crystal has been studied using Raman spectroscopy at pressures of up to 5 GPa in a diamond anvil cell. The Raman
frequency of the intralayer mode increases linearly with increasing pressure at baric coefficients of 5.2 cm−1/GPa for P<3 GPa and 3.4 cm−1/GPa for P>3 GPa. This change in the baric coefficient for Raman scattering and the available data on X-ray measurements of the compressibility
of 2H-SnS2up to 10 GPa suggest that the crystal structure undergoes a transformation at about 3 GPa. |
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