Experimental low-temperature heat capacity of one-dimensional xenon adsorbate chains in the grooves of carbon c-SWNT bundles

• Published in: Физика низких температур
• Date: 2013
• Main Authors: Bagatskii, M.I., Manzhelii, V.G., Sumarokov, V.V., Barabashko, M.S.
• Format: Article
• Language: English
• Published: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2013
• Subjects: Наноструктуры при низких температурах
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/118661
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Experimental low-temperature heat capacity of one-dimensional xenon adsorbate chains in the grooves of carbon c-SWNT bundles / M.I. Bagatskii, V.G. Manzhelii, V.V. Sumarokov, M.S. Barabashko // Физика низких температур. — 2013. — Т. 39, № 7. — С. 801–805. — Бібліогр.: 35 назв. — англ.

The experimental studies of the heat capacity of 1D chains of xenon atoms adsorbed in the outer grooves of bundles of closed single-walled carbon nanotubes CXe have been first made at temperature range 2–30 K with the adiabatic calorimeter. The experimental data CXe have been compared with theory [A. Šiber, Phys. Rev. B 66, 235414 (2002)]. The experimental and theoretical heat capacity curves are close below 8 K. Above 8 K the experimental curve CXe (T) exceeds the theoretical one and excess capacity CXe (T) increases monotonously with temperature. We assume that the CXe (T) caused mainly by the increase of the distance between the neighboring xenon atoms in the chain with increasing temperature.