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Negating Negative Heat Capacity in Nanoclusters | | Karo Michaelian
; Ivan Santamaria-Holek
; | | Date: |
16 Jan 2007 | | Subject: | Materials Science; Statistical Mechanics | | Abstract: | 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. | | Source: | arXiv, cond-mat/0701357 | | Services: | Forum | Review | PDF | Favorites | |
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