Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2010-02-09
Phys. Rev. B 84, 205120 (2011)
Physics
Condensed Matter
Statistical Mechanics
Calculated density phase diagrams. Added discussions and references. 14 pages, 9 figures, 4 tables
Scientific paper
10.1103/PhysRevE.84.051129
The global phase diagram of the spinless Falicov-Kimball model in d = 3 spatial dimensions is obtained by renormalization-group theory. This global phase diagram exhibits five distinct phases. Four of these phases are charge-ordered (CO) phases, in which the system forms two sublattices with different electron densities. The CO phases occur at and near half filling of the conduction electrons for the entire range of localized electron densities. The phase boundaries are second order, except for the intermediate and large interaction regimes, where a first-order phase boundary occurs in the central region of the phase diagram, resulting in phase coexistence at and near half filling of both localized and conduction electrons. These two-phase or three-phase coexistence regions are between different charge-ordered phases, between charge-ordered and disordered phases, and between dense and dilute disordered phases. The second-order phase boundaries terminate on the first-order phase transitions via critical endpoints and double critical endpoints. The first-order phase boundary is delimited by critical points. The cross-sections of the global phase diagram with respect to the chemical potentials and densities of the localized and conduction electrons, at all representative interactions strengths, hopping strengths, and temperatures, are calculated and exhibit ten distinct topologies.
Berker Nihat A.
Hinczewski Michael
Sarıyer Ozan S.
No associations
LandOfFree
Phase Separation and Charge-Ordered Phases of the d = 3 Falicov-Kimball Model at T>0: Temperature-Density-Chemical Potential Global Phase Diagram from Renormalization-Group Theory does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Phase Separation and Charge-Ordered Phases of the d = 3 Falicov-Kimball Model at T>0: Temperature-Density-Chemical Potential Global Phase Diagram from Renormalization-Group Theory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phase Separation and Charge-Ordered Phases of the d = 3 Falicov-Kimball Model at T>0: Temperature-Density-Chemical Potential Global Phase Diagram from Renormalization-Group Theory will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-124423