Phase Diagram of 5= 1/2 Antiferromagnetic XXZ Chain with Next-Nearest-Neighbor Interactions

Kiyohide Nomura, Kiyomi Okamoto

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81 Citations (Scopus)

Abstract

We numerically investigate the critical lines of the fluid-dimer and the Neel-dimer transitions of the 5=1/2 antiferromagnetic XXZ chain with next-nearest interactions, assuming the asymptotic behavior to be determined by the quantum sine-Gor-don model. Our result is different from that of Tonegawa, Harada and Kaburagi, who used the phenomenological renormalization group (PRG). We show that the PRG may lead to a false critical point when it is applied to the Kosterlitz-Thouless-type transition.

Original languageEnglish
Pages (from-to)1123-1126
Number of pages4
Journaljournal of the physical society of japan
Volume62
Issue number4
DOIs
Publication statusPublished - Jan 1 1993
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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