The European Physical Journal B - Condensed Matter and Complex Systems

, Volume 39, Issue 2, pp 155–168

Ordered phases of XXZ-symmetric spin-1/2 zigzag ladder


DOI: 10.1140/epjb/e2004-00180-3

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.

Copyright information

© Springer-Verlag Berlin/Heidelberg 2004

Authors and Affiliations

  1. 1.International School for Advanced StudiesTriesteItaly
  2. 2.The Abdus Salam International Centre for Theoretical PhysicsTriesteItaly
  3. 3.The Andronikashvili Institute of PhysicsTbilisiGeorgia