Phase diagram of an asymmetric spin ladder

Details Phase diagram of an asymmetric spin ladder Phase diagram of an asymmetric spin ladder

2001-06-29

arxiv.org/abs/cond-mat/0106651v1

Phys. Rev. Lett. 87, 087205 (2001)

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 2 EPS figures, to be published in PRL

Scientific paper

10.1103/PhysRevLett.87.087205

We investigate an asymmetric zig-zag spin ladder with different exchange integrals on both legs using bosonization and renormalization group. When the leg exchange integrals and frustration both are sufficiently small, renormalization group analysis shows that the Heisenberg critical point flows to an intermediate-coupling fixed point with gapless excitations and a vanishing spin velocity. When they are large, a spin gap opens and a dimer liquid is realized. Here, we find a continuous manifold of Hamiltonians with dimer product ground states, interpolating between the Majumdar-Ghosh and sawtooth spin-chain model.

Affiliated with

Also associated with

No associations

Rating

Phase diagram of an asymmetric spin ladder 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 Phase diagram of an asymmetric spin ladder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phase diagram of an asymmetric spin ladder will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-331318