Frustrated three-leg spin tubes: from spin 1/2 with chirality to spin 3/2

Details Frustrated three-leg spin tubes: from spin 1/2 with chirality to spin 3/2 Frustrated three-leg spin tubes: from spin 1/2 with chirality to spin 3/2

2005-09-08

arxiv.org/abs/cond-mat/0509217v2

Phys. Rev. B 73,014409 (2006)

Physics

Condensed Matter

Strongly Correlated Electrons

8 pages, 9 figures, revised version

Scientific paper

10.1103/PhysRevB.73.014409

Motivated by the recent discovery of the spin tube [(CuCl$_2$tachH)$_3$Cl]Cl$_2$, we investigate the properties of a frustrated three-leg spin tube with antiferromagnetic intra-ring and inter-ring couplings. We pay special attention to the evolution of the properties from weak to strong inter-ring coupling and show on the basis of extensive density matrix renormalization group and exact diagonalization calculations that the system undergoes a first-order phase transition between a dimerized gapped phase at weak coupling that can be described by the usual spin-chirality model and a gapless critical phase at strong coupling that can be described by an effective spin-3/2 model. We also show that there is a magnetization plateau at 1/3 in the gapped phase and slightly beyond. The implications for [(CuCl$_2$tachH)$_3$Cl]Cl$_2$ are discussed, with the conclusion that this system behaves essentially as a spin-3/2 chain.

Affiliated with

Also associated with

No associations

Rating

Frustrated three-leg spin tubes: from spin 1/2 with chirality to spin 3/2 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 Frustrated three-leg spin tubes: from spin 1/2 with chirality to spin 3/2, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Frustrated three-leg spin tubes: from spin 1/2 with chirality to spin 3/2 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-2808