Isotope effects in Raman spectra of crystalline sulfur α-S8 |
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| Authors: | B A Kolesov N B Egorov |
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| Institution: | 1. Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, pr. Akademika Lavrent’eva 3, Novosibirsk, 630090, Russia
2. National Research Tomsk Polytechnic University, pr. Lenina 30, Tomsk, 634050, Russia
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| Abstract: | The Raman spectra of 32S, 33S, and 34S powders, as well as naturS powder with the natural isotopic composition, have been measured in the temperature range of 5–300 K. The isotope mass dependences of the vibrational frequencies have been obtained. It has been shown that such a dependence in the region of mixed translational-librational modes differs from the dependences known for monatomic inorganic crystals. The role of zero-point vibrations for low- and high-frequency modes has been revealed throughout the entire temperature range. |
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