Critical phenomena in a highly constrained classical spin system: Neel ordering from the Coulomb phase

Details Critical phenomena in a highly constrained classical spin system: Neel ordering from the Coulomb phase Critical phenomena in a highly constrained classical spin system: Neel ordering from the Coulomb phase

2007-08-28

arxiv.org/abs/0708.3791v1

Europhysics Letters 84 36002 (2008)

Physics

Condensed Matter

Statistical Mechanics

4 pages, 3 figures

Scientific paper

10.1209/0295-5075/84/36002

Many classical, geometrically frustrated antiferromagnets have macroscopically degenerate ground states. In a class of three-dimensional systems, the set of degenerate ground states has power-law correlations and is an example of a Coulomb phase. We investigate Neel ordering from such a Coulomb phase, induced by weak additional interactions that lift the degeneracy. We show that the critical point belongs to a universality class that is different from the one for the equivalent transition out of the paramagnetic phase, and that it is characterised by effective long-range interactions; alternatively, ordering may be discontinuous. We suggest that a transition of this type may be realised by applying uniaxial stress to a pyrochlore antiferromagnet.

Affiliated with

Also associated with

No associations

Rating

Critical phenomena in a highly constrained classical spin system: Neel ordering from the Coulomb phase 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 Critical phenomena in a highly constrained classical spin system: Neel ordering from the Coulomb phase, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Critical phenomena in a highly constrained classical spin system: Neel ordering from the Coulomb phase will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-363194