TY - JOUR
T1 - Universality of liquid-gas Mott transitions at finite temperatures
AU - Papanikolaou, Stefanos
AU - Fernandes, Rafael M.
AU - Fradkin, Eduardo
AU - Phillips, Philip W.
AU - Schmalian, Joerg
AU - Sknepnek, Rastko
PY - 2008/1/18
Y1 - 2008/1/18
N2 - 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.
AB - 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.
KW - Systems
KW - Critical-Behavior
KW - Metal-Insulator-Transition
KW - 1st-Order Phase-Transitions
U2 - 10.1103/PhysRevLett.100.026408
DO - 10.1103/PhysRevLett.100.026408
M3 - Article
C2 - 18232898
SN - 0031-9007
VL - 100
JO - Physical Review Letters
JF - Physical Review Letters
IS - 2
M1 - ARTN 026408
ER -