Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2006-08-07
Phys. Rev. B 73, 193106(2006)
Physics
Condensed Matter
Strongly Correlated Electrons
5 pages, 5 figures
Scientific paper
10.1103/PhysRevB.73.193106
Based on the so called $t$-$\phi$ model in two-dimensional (2D) lattices, we investigate the stabilities of a class of extended staggered-flux (SF) phases (which are the extensions of the $\sqrt{2}\times\sqrt{2}$ SF phase to generalized spatial periods) against the Fermi-liquid phase. Surprisingly, when away from the nesting electron filling, some extended-SF phases take over the dominant SF phase (the $\sqrt{2}\times\sqrt{2}$ SF phase for the square lattice, a $1\times\sqrt{3}$ SF phase for the triangular one), compete with the Fermi-liquid phase in nontrivial patterns, and still occupy significant space in the phase diagram through the advantage in the total electronic kinetic energies. The results can be termed as the generalized Perierls orbital-antiferromagnetic instabilities of the Fermi-liquid phase in 2D lattice-electron models.
Gong Chang-De
Wang Yi-Fei
Zhu Shi-Yao
No associations
LandOfFree
Extended staggered-flux phases in two-dimensional lattices 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 Extended staggered-flux phases in two-dimensional lattices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Extended staggered-flux phases in two-dimensional lattices will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-600686