Plaquette Ground State in the Two-dimensional SU(4) Spin-Orbital Model

Details Plaquette Ground State in the Two-dimensional SU(4) Spin-Orbital Model Plaquette Ground State in the Two-dimensional SU(4) Spin-Orbital Model

2000-01-05

arxiv.org/abs/cond-mat/0001051v2

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 6 Postscript figures, ReVTeX

Scientific paper

10.1007/PL00011085

In order to understand the properties of Mott insulators with strong ground state orbital fluctuations, we study the zero temperature properties of the SU(4) spin-orbital model on a square lattice. Exact diagonalizations of finite clusters suggest that the ground state is disordered with a singlet-multiplet gap and possibly low-lying SU(4) singlets in the gap. An interpretation in terms of plaquette SU(4) singlets is proposed. The implications for LiNiO_2 are discussed.

Affiliated with

Also associated with

No associations

Rating

Plaquette Ground State in the Two-dimensional SU(4) Spin-Orbital 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 Plaquette Ground State in the Two-dimensional SU(4) Spin-Orbital Model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Plaquette Ground State in the Two-dimensional SU(4) Spin-Orbital Model will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-90236