Universality of liquid-gas Mott transitions at finite temperatures

Stefanos Papanikolaou, Rafael M. Fernandes, Eduardo Fradkin, Philip W. Phillips, Joerg Schmalian, Rastko Sknepnek

    Research output: Contribution to journalArticlepeer-review

    39 Citations (Scopus)


    We explain, in a consistent manner, the set of seemingly conflicting experiments on the finite temperature Mott critical point, and demonstrate that the Mott transition is in the Ising universality class. We show that, even though the thermodynamic behavior of the system near such critical point is described by an Ising order parameter, the global conductivity can depend on other singular observables and, in particular, on the energy density. Finally, we show that in the presence of weak disorder the dimensionality of the system has crucial effects on the size of the critical region that is probed experimentally.

    Original languageEnglish
    Article numberARTN 026408
    Number of pages4
    JournalPhysical Review Letters
    Issue number2
    Publication statusPublished - 18 Jan 2008


    • Systems
    • Critical-Behavior
    • Metal-Insulator-Transition
    • 1st-Order Phase-Transitions


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