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Possible sites of adsorption of relatively small impurity atoms or molecules in a c-SWNT bundle.
One-dimensional chains of Xe atoms adsorbed in the grooves at the outer surface of a c-SWNT bundle; a is the distance between the nearest neighboring Xe atoms in the chain.
Experimental temperature dependencies of the total heat capacity C ad+Xe and its component C ad.
The heat capacity of 1D chains of Xe atoms adsorbed in the grooves at the outer surface of c-SWNT bundles. Experiment (this work): open circles. Theory: 29 solid curve for the L + T 1 + T 2 modes; solid straight line only for the L mode.
The dependence of C Xe/μRT vs. T: circles—experiment, the straight line—theoretical low temperature asymptotics of the heat capacity of the longitudinal mode of the chains of Xe adatoms. 29
1D Debye temperatures Θ D,L.
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