Exotic criticality in the dimerized spin-1 XXZ chain with single-ion anisotropy

@article{Ejima2018ExoticCI,
  title={Exotic criticality in the dimerized spin-1 XXZ chain with single-ion anisotropy},
  author={Satoshi Ejima and Tomoki Yamaguchi and Fabian H L Essler and Florian Lange and Yukinori Ohta and Holger Fehske},
  journal={arXiv: Strongly Correlated Electrons},
  year={2018},
  volume={5},
  pages={059}
}
  • Satoshi Ejima, Tomoki Yamaguchi, +3 authors Holger Fehske
  • Published 2018
  • Physics
  • arXiv: Strongly Correlated Electrons
  • We consider the dimerized spin-1 $XXZ$ chain with single-ion anisotropy $D$. In absence of an explicit dimerization there are three phases: a large-$D$, an antiferromagnetically ordered and a Haldane phase. This phase structure persists up to a critical dimerization, above which the Haldane phase disappears. We show that for weak dimerization the phases are separated by Gaussian and Ising quantum phase transitions. One of the Ising transitions terminates in a critical point in the universality… CONTINUE READING

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    Phase diagram of S=1 bond-alternating XXZ chains.

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