Universality of liquid-gas Mott transitions at finite temperatures

Abstract

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.

4 pages, 3 figures

References in corpus (3)

• Unconventional critical behaviour in a quasi-two-dimensional organic conductor
• Universality Classes of Metal-Insulator Transitions in Strongly Correlated Electron Systems and Mechanism of High-Temperature Superconductivity
• Anomalous Lattice Response at the Mott Transition in a Quasi-2D Organic Conductor

Cited by in corpus (14)

• Quantum frustration in organic Mott insulators: from spin liquids to unconventional superconductors
• Kondo proximity effect: How does a metal penetrate into a Mott insulator?
• Molecular Quantum Materials: Electronic Phases and Charge Dynamics in Two-Dimensional Organic Solids
• Scaling theory of the Mott transition and breakdown of the Grüneisen scaling near a finite-temperature critical end point
• Critical Slowing Down of the Charge Carrier Dynamics at the Mott Metal-Insulator Transition
• High-resolution thermal expansion measurements under Helium-gas pressure
• Effects of Disorder on the Pressure-Induced Mott Transition in $\kappa$-BEDT-TTF)${}_2$Cu[N(CN)${}_2$]Cl
• Probing the Mott Physics in $\kappa$-(BEDT-TTF)${}_2$X Salts via Thermal Expansion
• Universality Class of the Mott Transition
• Gating-Induced Mott Transition in NiS${}_2$
• Local moments versus itinerant antiferromagnetism: magnetic phase diagram and spectral properties of the anisotropic square lattice Hubbard model
• Conductivity of electronic liquid-crystalline mesophases
• Deep Learning Hamiltonians from Disordered Image Data in Quantum Materials
• Cell dynamics simulations of coupled charge and magnetic phase transformation in correlated oxides