RAMAN SPECTRAL STUDY OF CuCrS2 CRYSTALS IN THE TEMPERATURE RANGE OF 5-300 K
A. V. Selivanova1, V. V. Sokolov2, B. A. Kolesov1,2
1Novosibirsk National Research State University, Novosibirsk, Russia 2Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
Keywords: КР спектроскопия, слоистые кристаллы, низкие температуры, Raman spectroscopy, layered crystals, low temperatures
Abstract
The work presents Raman spectra of platelike crystals of the CuCrS
2 compound, which were grown from polycrystalline CuCrS
2 by the CVD method with an elementary iodine as a carrier. The spectra are measured in the temperature range of 5-300 K. Observed vibrational modes are assigned based on the temperature dependences of their frequencies. In the temperature range of magnetic ordering (
Т < 40 K) a weak increase is observed in the frequencies of totally symmetric vibrations, which is interpreted as a result of the phonon-magnon interaction.
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