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
• ISSN: 0132-6414
• 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.