Negating Negative Heat Capacity in Nanoclusters

Details Negating Negative Heat Capacity in Nanoclusters Negating Negative Heat Capacity in Nanoclusters

2007-01-16

arxiv.org/abs/cond-mat/0701357v1

Physics

Condensed Matter

Materials Science

11 pages, 3 figures

Scientific paper

It is shown that negative heat capacity in nanoclusters is an artifact of applying equilibrium thermodynamic formalism on a small system trapped out of equilibrium in a particular structural motif representing only part of the energetically available phase space volume. Trapping may occur in either the canonical or microcanonical ensemble, but it is unavoidable in the microcanonical. A more general consequence of trapping is that all macroscopic quantities determined for nanoclusters will depend on the initial conditions.

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