Analysis of the Finite-Temperature Phase Diagram of the Spinless Falicov-Kimball Model

• Authors: R. Lemański
• Languages of publication: EN

Abstracts

EN

The finite-temperature phase diagram of the spinless Falicov-Kimball model on the Bethe lattice is analyzed using the dynamic mean field theory. Comparing the temperature-dependent density of states at various phases we detected a difference between two phases of the ordered insulator (OI-X and OI-Y) whose stability areas in the phase diagram are separated by the stability area of the ordered conductor. It appears that the difference between OI-X and OI-Y phases is due to the band inversion, consisting in a reversal of those subbands, that lie just above and below the Fermi level and are derived only from one or the other sublattice (+ or -).

Keywords

EN

71.10.Fd; 71.20.-b; 71.45.Lr

Discipline

• 71.20.-b: Electron density of states and band structure of crystalline solids
• 71.45.Lr: Charge-density-wave systems(see also 75.30.Fv Spin-density waves)
• 71.10.Fd: Lattice fermion models (Hubbard model, etc.)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2016
• Volume: 130
• Issue: 2
• Pages: 577-580

Dates

published

2016-08

Contributors

author

R. Lemański

• Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okólna 2, 50-422 Wrocław, Poland

References

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Identifiers

DOI

10.12693/APhysPolA.130.577