Magnetic order in the quasi-two-dimensional easy-plane XXZ model

Details Magnetic order in the quasi-two-dimensional easy-plane XXZ model Magnetic order in the quasi-two-dimensional easy-plane XXZ model

2001-05-04

arxiv.org/abs/cond-mat/0105087v1

Phys. Rev. B. 64, 054419 (2001)

Physics

Condensed Matter

Strongly Correlated Electrons

7 pages, 5 figures

Scientific paper

10.1103/PhysRevB.64.054419

A Green's-function theory of antiferromagnetic short-range and long-range order (LRO) in the $S=1/2$ quasi-two-dimensional easy-plane XXZ model is presented. As the main new result, {\it two} phase transitions due to the combined influence of spatial and spin anisotropy are found, where below the higher and lower N\'{e}el temperature there occurs LRO in the transverse and in both the transverse and longitudinal spin correlators, respectively. Comparing the theory with neutron-scattering data for the correlation length of $\rm La_2CuO_4$, a very good agreement in the whole temperature dependence is obtained. Moreover, for $\rm La_2CuO_4$, $\rm Sr_2CuO_2Cl_2$, and $\rm Ca_{0.85}Sr_{0.15}CuO_2$ the second phase with longitudinal LRO is predicted to appear far below room temperature.

Affiliated with

Also associated with

No associations

Rating

Magnetic order in the quasi-two-dimensional easy-plane XXZ 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 Magnetic order in the quasi-two-dimensional easy-plane XXZ model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic order in the quasi-two-dimensional easy-plane XXZ model will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-249825