Negative heat capacity at phase-separation in macroscopic systems

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Gross, D. H. E.;
  • Subject: Nuclear Theory | Condensed Matter - Statistical Mechanics | Astrophysics

Systems with long-range as well with short-range interactions should necessarily have a convex entropy S(E) at proper phase transitions of first order, i.e. when a separation of phases occurs. Here the microcanonical heat capacity c(E)= -\frac{(\partial S/\partial E)^2}... View more
  • References (6)

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    [2] D.H.E. Gross. Microcanonical thermodynamics: Phase transitions in “Small” systems, volume 66 of Lecture Notes in Physics. World Scientific, Singapore, 2001.

    [3] R.D. Carlitz. Hadronic matter at high density. Phys.Rev.D, 5:3231-3242, 1972.

    [4] D.H.E. Gross and M.E. Madjet. Fragmentation phase transition in atomic clusters IV - the relation of the fragmentation phase transition to the bulk liquidgas transition. Z.Physik B, 104:541-551, 1997; and

    [5] C. Br´echignac, Ph. Cahuzac, F. Carlier, J. Leygnier, and J.Ph. Roux. J.Chem.Phys., 102:1, 1995.

    [6] D.H.E. Gross and J.F. Kenney. The microcanonical thermodynamics of finite systems: The microscopic origin of condensation and phase separations; and the conditions for heat flow from lower to higher temperatures. Journal of Chemical Physics, 122:224111;cond-mat/0503604, (2005).

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