title: Universality and critical behavior at the Mott transition.
abstract: We report conductivity measurements of Cr-doped V2O3 using a variable pressure technique. The critical behavior of the conductivity near the Mott insulator to metal critical endpoint is investigated in detail as a function of pressure and temperature. The critical exponents are determined, as well as the scaling function associated with the equation of state. The universal properties of a liquid-gas transition are found. This is potentially a generic description of the Mott critical endpoint in correlated electron materials.
authors.affiliation: Laboratoire de Physique des Solides (CNRS, U.R.A. 8502), Bâtiment 510, Université de Paris-Sud, 91405 Orsay, France. limelette@lps.u-psud.fr
authors.forename: P
authors.initials: P
authors.lastname: Limelette
authors.forename: A
authors.initials: A
authors.lastname: Georges
authors.forename: D
authors.initials: D
authors.lastname: Jérome
authors.forename: P
authors.initials: P
authors.lastname: Wzietek
authors.forename: P
authors.initials: P
authors.lastname: Metcalf
authors.forename: J M
authors.initials: JM
authors.lastname: Honig