Ordered phases of XXZ-symmetric spin-1/2 zigzag ladder
- Cite this article as:
- Zarea, M., Fabrizio, M. & Nersesyan, A.A. Eur. Phys. J. B (2004) 39: 155. doi:10.1140/epjb/e2004-00180-3
Using bosonization approach, we derive an effective low-energy theory for XXZ-symmetric spin-1/2 zigzag ladders and discuss its phase diagram by a variational approach. A spin nematic phase emerges in a wide part of the phase diagram, either critical or massive. Possible crossovers between the spontaneously dimerized and spin nematic phases are discussed, and the topological excitations in all phases identified.