Dimensional crossover in the quasi-two-dimensional Ising-O(3) model

Details Dimensional crossover in the quasi-two-dimensional Ising-O(3) model Dimensional crossover in the quasi-two-dimensional Ising-O(3) model

2011-08-08

arxiv.org/abs/1108.1599v3

Phys. Rev. B 84, 214429 (2011)

Physics

Condensed Matter

Strongly Correlated Electrons

12 pages, 11 figures; Corrected minor misprints; published in Phys. Rev. B

Scientific paper

10.1103/PhysRevB.84.214429

We present results of our Monte Carlo simulation of the Ising-O(3) model on the two-dimensional (2D) and quasi-2D lattices. This model is an effective classical model for the stacked square-lattice $J_1$-$J_2$ Heisenberg model where the nearest neighbor ($J_1$) and next-nearest neighbor ($J_2$) couplings are frustrated and we assume that $J_2$ is dominant. We find an Ising ordered phase where the O(3) spins remain disordered in a moderate quasi-2D region. There is a single first order transition for a sufficiently large 3D coupling. Our results can provide a qualitative explanation on the experiments on ferropnictides, namely observed sequence and orders of the structural and magnetic transitions, in terms of the ratio between the inter-layer and intra-layer coupling.

Affiliated with

Also associated with

No associations

Rating

Dimensional crossover in the quasi-two-dimensional Ising-O(3) 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 Dimensional crossover in the quasi-two-dimensional Ising-O(3) model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dimensional crossover in the quasi-two-dimensional Ising-O(3) model will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-188806