Characteristic Crossing Points in Specific Heat Curves of Correlated Systems

Abstract

Attention is drawn to the observation that in many correlated systems (e.g. 3He, heavy fermion systems and Hubbard models) the specific heat curves, when plotted for different values of some thermodynamic variable (e.g. pressure, magnetic field, interaction), cross almost precisely at one or two characteristic temperatures. A quantitative explanation of this phenomenon, based on the temperature dependence of the associated generalized susceptibilities, is presented.

10 pages, Revtex, 2 postscript figures included, 1 figure available from the author upon request

References in corpus (1)

• Charge and Spin Gap Formation in Exactly Solvable Hubbard Chains with Long-Rang Hopping

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