Competing interactions in the XYZ model

Details Competing interactions in the XYZ model Competing interactions in the XYZ model

2002-10-24

arxiv.org/abs/cond-mat/0210546v1

Physics

Condensed Matter

Strongly Correlated Electrons

6 pages, 6 figures

Scientific paper

10.1103/PhysRevB.67.144426

We study the interplay between a XY anisotropy $\gamma$, exchange modulations
and an external magnetic field along the z direction in the XYZ chain using
bosonization and Lanczos diagonalization techniques. We find an Ising critical
line in the space of couplings which occur due to competing relevant
perturbations which are present. More general situations are also discussed.

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