Reentrant charge order transition in the extended Hubbard model

Details Reentrant charge order transition in the extended Hubbard model Reentrant charge order transition in the extended Hubbard model

1999-01-05

arxiv.org/abs/cond-mat/9901021v1

Phys. Rev. Lett. 82, 4046 (1999)

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 4 EPS figures included, REVTeX

Scientific paper

10.1103/PhysRevLett.82.4046

We study the extended Hubbard model with both on-site and nearest neighbor Coulomb repulsion ($U$ and $V$, respectively) in the Dynamical Mean Field theory. At quarter filling, the model shows a transition to a charge ordered phase with different sublattice occupancies $n_A \nen_B$. The effective mass increases drastically at the critical $V$ and a pseudo-gap opens in the single-particle spectral function for higher values of $V$. The $V_c(T)$-curve has a negative slope for small temperatures, i.e. the charge ordering transition can be driven by increasing the temperature. This is due to the higher spin-entropy of the charge ordered phase.

Affiliated with

Also associated with

No associations

Rating

Reentrant charge order transition in the extended Hubbard model 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 Reentrant charge order transition in the extended Hubbard model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reentrant charge order transition in the extended Hubbard model will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-217504