Strongly disordered spin ladders

Details Strongly disordered spin ladders Strongly disordered spin ladders

2001-12-14

arxiv.org/abs/cond-mat/0112261v1

Phys. Rev. B65, 104415 (2002)

Physics

Condensed Matter

Disordered Systems and Neural Networks

11 pages, 15 figures, PRB accepted for publication

Scientific paper

10.1103/PhysRevB.65.104415

The effect of quenched disorder on the low-energy properties of various antiferromagnetic spin ladder models is studied by a numerical strong disorder renormalization group method and by density matrix renormalization. For strong enough disorder the originally gapped phases with finite topological or dimer order become gapless. In these quantum Griffiths phases the scaling of the energy, as well as the singularities in the dynamical quantities are characterized by a finite dynamical exponent, z, which varies with the strength of disorder. At the phase boundaries, separating topologically distinct Griffiths phases the singular behavior of the disordered ladders is generally controlled by an infinite randomness fixed point.

Affiliated with

Also associated with

No associations

Rating

Strongly disordered spin ladders 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 Strongly disordered spin ladders, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Strongly disordered spin ladders will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-663328