The fate of spinons in spontaneously dimerised spin-1/2 ladders

Details The fate of spinons in spontaneously dimerised spin-1/2 ladders The fate of spinons in spontaneously dimerised spin-1/2 ladders

1999-07-20

arxiv.org/abs/cond-mat/9907303v2

Physics

Condensed Matter

Strongly Correlated Electrons

8 pages of revtex, 7 figures; discussion of physical picture for ground state and excitations in the "twistless" ladder expand

Scientific paper

10.1103/PhysRevB.61.8871

We study a weakly coupled, frustrated two-leg spin-1/2 Heisenberg ladder. For vanishing coupling between the chains, elementary excitations are deconfined, gapless spin-1/2 objects called spinons. We investigate the fate of spinons for the case of a weak interchain interaction. We show that despite a drastic change in ground state, which becomes spontaneously dimerised, spinons survive as elementary excitations but acquire a spectral gap. We furthermore determine the exact dynamical structure factor for several values of momentum transfer.

Affiliated with

Also associated with

No associations

Rating

The fate of spinons in spontaneously dimerised spin-1/2 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 The fate of spinons in spontaneously dimerised spin-1/2 ladders, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The fate of spinons in spontaneously dimerised spin-1/2 ladders will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-439157