Abstract
The experimental values of heat capacity and thermal expansion for lutetium boride LuB66 in the temperature range of 2–300 K were analysed in the Debye–Einstein approximation. It was found that the vibration of the boron sub-lattice can be considered within the Debye model with high characteristic temperatures; low-frequency vibration of weakly connected metal atoms is described by the Einstein model.
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The work was supported by the Ministry of Education and Science of the Russian Federation (Project 14.B37.21.0886) and the President Grant (Project 14.124.13.7302-MK).
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Novikov, V.V., Avdashchenko, D.V., Matovnikov, A.V. et al. Heat capacity and thermal expansion of icosahedral lutetium boride LuB66 . J Therm Anal Calorim 116, 765–769 (2014). https://doi.org/10.1007/s10973-013-3593-2
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DOI: https://doi.org/10.1007/s10973-013-3593-2