Compressibility Divergence and the Finite Temperature Mott Transition

In the context of the dynamical mean-field theory (DMFT) of the Hubbard model, we study the behavior of the compressibility near the density driven Mott transition at finite temperatures. We demonstrate this divergence using DMFT and quantum Monte Carlo simulations in the one-band and the two-band H...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Kotliar, G., Murthy, S., Rozenberg, M.J.
Formato: JOUR
Materias:
Band structure
Cerium
Compressibility of solids
Computer simulation
Electronic density of states
Mathematical models
Monte Carlo methods
Phase transitions
Dynamical mean field theory
Hubbard model
Landau theory
Mott transition
Quantum theory
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00319007_v89_n4_p_Kotliar
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
Descripción
Sumario:In the context of the dynamical mean-field theory (DMFT) of the Hubbard model, we study the behavior of the compressibility near the density driven Mott transition at finite temperatures. We demonstrate this divergence using DMFT and quantum Monte Carlo simulations in the one-band and the two-band Hubbard model. We supplement this result with considerations based on the Landau theory framework, and discuss the relevance of our results to the [Formula presented] end point in cerium. © 2002 The American Physical Society.

Ejemplares similares