Phase diagram and magnons in quasi-one-dimensional dipolar antiferromagnets

Details Phase diagram and magnons in quasi-one-dimensional dipolar antiferromagnets Phase diagram and magnons in quasi-one-dimensional dipolar antiferromagnets

1998-10-30

arxiv.org/abs/cond-mat/9810402v1

Physics

Condensed Matter

Statistical Mechanics

3 pages, 3 Postscript figures

Scientific paper

10.1063/1.370099

We investigate antiferromagnetic spin chains, which are coupled by a weak antiferromagnetic exchange interaction on a hexagonal lattice. We particulary study the role of the dipole-dipole interaction within the framework of a Heisenberg model with nearest-neighbor exchange and additional dipolar interaction. We find several commensurate and incommensurate phases depending on the ratio of dipolar energy to interchain-exchange energy due to their competing qualtity. The ground-state analysis is supplemented by a stability analysis by means of a linear spin-wave theory. In comparison with experiments (CsMnBr_3, RbMnBr_3) we obtain good agreement for the energy gaps. From this we conclude, that the dipolar interaction is the most important source of anisotropy in these Mn-compounds.

Affiliated with

Also associated with

No associations

Rating

Phase diagram and magnons in quasi-one-dimensional dipolar antiferromagnets 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 diagram and magnons in quasi-one-dimensional dipolar antiferromagnets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phase diagram and magnons in quasi-one-dimensional dipolar antiferromagnets will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-82608