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Phase transitions in the one-dimensional spin-SJ1−J2XYmodel

P. Lecheminant, T. Jolicoeur, P. Azaria
2001 Physical Review B (Condensed Matter)  

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2001 accepted arXiv:cond-mat/0007138v3 fatcat:6yb6e2klzbbp7lyvhirrlpxqqm

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2000 pre-print
arXiv:cond-mat/0007138v2 fatcat:g72ndshr4vdljnpvqvyxz5qx5m
2000 pre-print
arXiv:cond-mat/0007138v1 fatcat:q7hujxmew5fnzjykjhtjtzrvwa
The one-dimensional spin-S J_1-J_2 XY model is studied within the bosonization approach. Around the two limits (J_2/J_1 ≪ 1,J_2/J_1 ≫ 1) where a field theoretical analysis can be derived, we discuss the phases as well as the different phase transitions that occur in the model. In particular, it is found that the chiral critical spin nematic phase, first discovered by Nersesyan et al. (Phys. Rev. Lett. 81, 910 (1998)) for S=1/2, exists in the general spin-S case. The nature of the effective
more » ... theory that describes the transition between this chiral critical phase and a chiral gapped phase is also determined.
doi:10.1103/physrevb.63.174426 fatcat:jeo2fjtuqjfe5ie7uf2kb2wcpm
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P. Lecheminant, T. Jolicoeur, P. Azaria. "Phase transitions in the one-dimensional spin-SJ1−J2XYmodel." Physical Review B (Condensed Matter) 63.17 (2001)