Journal of Thermal Analysis and Calorimetry

, Volume 116, Issue 2, pp 765–769

Heat capacity and thermal expansion of icosahedral lutetium boride LuB66

  • V. V. Novikov
  • D. V. Avdashchenko
  • A. V. Matovnikov
  • N. V. Mitroshenkov
  • S. L. Bud’ko
Article

DOI: 10.1007/s10973-013-3593-2

Cite this article as:
Novikov, V.V., Avdashchenko, D.V., Matovnikov, A.V. et al. J Therm Anal Calorim (2014) 116: 765. doi:10.1007/s10973-013-3593-2

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.

Keywords

Heat capacity Thermal expansion Low temperatures Borides 

Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2014

Authors and Affiliations

  • V. V. Novikov
    • 1
  • D. V. Avdashchenko
    • 1
  • A. V. Matovnikov
    • 1
  • N. V. Mitroshenkov
    • 1
  • S. L. Bud’ko
    • 2
    • 3
  1. 1.Petrovsky Bryansk State UniversityBryanskRussia
  2. 2.Ames LaboratoryU.S. DOEAmesUSA
  3. 3.Department of Physics and AstronomyIowa State UniversityAmesUSA

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