Adsorption of He atoms in external grooves of single wall carbon nanotube bundles

Abstract

I calculate the quantum states for He atom in the potential of an external groove of the single wall carbon nanotube bundle. The calculated ground state energy is found to be in fair agreement with the experimental estimate which suggests that the outer groove site is a preferential site for the adsorption of He gas in the samples studied experimentally. I also calculate the specific heat of low-density ${}^4$He atom gas adsorbed in groove positions. The specific geometry of the groove and its influence on the adsorbate quantum states and specific heat are discussed.

References in corpus (4)

• Quantized phonon specrum of single-wall carbon nanotubes
• Uptake of gases in bundles of carbon nanotubes
• Quasi-one and two-dimensional transitions of gases adsorbed on nanotube bundles
• Quantum states and specific heat of low-density He gas adsorbed within the carbon nanotube interstitial channels: Band structure effects and potential dependence

Cited by in corpus (11)

• Evidence of 1D behaviour of He${}^4$ confined within carbon-nanotube bundles
• Phonons and specific heat of linear dense phases of atoms physisorbed in the grooves of carbon nanotube bundles
• Vibrations of a chain of Xe atoms in a groove of carbon nanotube bundle
• The heat capacity of nitrogen chains in grooves of single-walled carbon nanotube bundles
• Bose-Einstein Condensation of Helium and Hydrogen inside Bundles of Carbon Nanotubes
• Quantum virial expansion approach to thermodynamics of ${}^4$He adsorbates in carbon nanotube materials: Interacting Bose gas in one dimension
• Thermodynamic properties and correlation functions of Ar films on the surface of a bundle of nanotubes
• Coating the carbon nanotubes: Geometry of incommensurate long-range ordered physisorbed monolayers
• Quantum Fluids in Nanotubes: a Quantum Monte Carlo Approach
• Specific heats of dilute neon inside long single-walled carbon nanotube and related problems
• Universality in adsorbate ordering on nanotube surfaces