Spin Freezing in Geometrically Frustrated Antiferromagnets with Weak Disorder

Details Spin Freezing in Geometrically Frustrated Antiferromagnets with Weak Disorder Spin Freezing in Geometrically Frustrated Antiferromagnets with Weak Disorder

2006-12-18

arxiv.org/abs/cond-mat/0612458v1

Physical Review Letters 98, 157201 (2007)

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 5 figures

Scientific paper

10.1103/PhysRevLett.98.157201

We investigate the consequences for geometrically frustrated antiferromagnets of weak disorder in the strength of exchange interactions. Taking as a model the classical Heisenberg antiferromagnet with nearest neighbour exchange on the pyrochlore lattice, we examine low-temperature behaviour. We show that random exchange generates long-range effective interactions within the extensively degenerate ground states of the clean system. Using Monte Carlo simulations, we find a spin glass transition at a temperature set by the disorder strength. Disorder of this type, which is generated by random strains in the presence of magnetoelastic coupling, may account for the spin freezing observed in many geometrically frustrated magnets.

Affiliated with

Also associated with

No associations

Rating

Spin Freezing in Geometrically Frustrated Antiferromagnets with Weak Disorder 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 Spin Freezing in Geometrically Frustrated Antiferromagnets with Weak Disorder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spin Freezing in Geometrically Frustrated Antiferromagnets with Weak Disorder will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-4975