Universal anisotropic condensation transition of gases in nanotube bundles

S. M. Gatica, M. M. Calbi, M. W. Cole

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Abstract

Gases adsorbed within bundles of carbon nanotubes (inside of the nanotubes or in the interstitial channels between the tubes) exhibit a variety of phase transitions with the help of interactions between molecules in neighboring channels or tubes. Because the channels/tubes are widely separated, these transverse interactions are weaker than the (longitudinal) interactions within the same channel. The transition temperatures that result are therefore lower than those of typical two- or three-dimensional transitions of the same species of molecules. We discuss here the condensation transition of such a gas to form a liquid, expressing the transition behavior in universal form, where the reduced critical temperature Tc* is a universal function of the reduced transverse interaction.

Original languageEnglish (US)
Pages (from-to)399-406
Number of pages8
JournalJournal of Low Temperature Physics
Volume133
Issue number5-6
DOIs
StatePublished - Dec 1 2003

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All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics

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