2006/09/04 by A. M. Gurevich, A. V. Terekhov, D. S. Kondrashev +5
Chemistry · Materials Science · Physics and Astronomy · #Advanced Materials and Semiconductor Technologies #Advanced Physical and Chemical Molecular Interactions #Fullerene Chemistry and Applications #cond-mat.mtrl-sci
paper · pdf · doi:10.1063/1.2364490
published as Fizika Nizkih Temperatur, 2006, V.32, No.10, p.1275-1277 · 4 pages, 2 figures, to be published in Fiz. Nizk. Temp. (Low Temp. Phys.)
arxiv created 2006/09/04 · openalex publication_date 2006/10/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The heat capacity Cm of polycrystalline fullerite C60 doped with nitrogen is measured in the temperature interval 2–13K. The contributions to the heat capacity from translational lattice vibrations (Debye contribution), from orientational vibrations of the C60 molecules (Einstein contribution), and from the motion of the N2 molecules in the octahedral cavities of the C60 lattice are estimated. However, no indications of the first-order phase transformation detected earlier in a dilatometric investigation of the N2–C60 orientational glass are found (beyond the experimental error limits). A possible explanation for this fact is proposed.