Phase Transitions in Bilayer Heisenberg Model with General Couplings

Details Phase Transitions in Bilayer Heisenberg Model with General Couplings Phase Transitions in Bilayer Heisenberg Model with General Couplings

1997-07-16

arxiv.org/abs/cond-mat/9707156v2

J. Phys. Soc. Jpn, 66 (1997) 3648.

Physics

Condensed Matter

Strongly Correlated Electrons

15 pages, LaTeX, 12 figures, uses jpsj.sty, revised version: some discussion to a related model and references added, submitte

Scientific paper

10.1143/JPSJ.66.3648

The ground state properties and phase diagram of the bilayer square-lattice Heisenberg model are studied in a broad parameter space of intralayer exchange couplings, assuming an antiferromagnetic coupling between constituent layers. In the classical limit, the model exhibits three phases: two of these are ordered phases specified by the ordering wave vectors (pi,pi;pi) and (0,0;pi), where the third component of each indecates the antiferromagnetic orientation between layers, while another one is a canted phase, stabilized by competing interactions. The effects of quantum fluctuations in the model with S=1/2 have been explored by means of dimer mean-field theory, small-system exact diagonalization, and high-order perturbation expansions about the interlayer dimer limit.

Affiliated with

Also associated with

No associations

Rating

Phase Transitions in Bilayer Heisenberg Model with General Couplings 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 Transitions in Bilayer Heisenberg Model with General Couplings, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phase Transitions in Bilayer Heisenberg Model with General Couplings will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-574833