Phase Transitions of S = 3/2 and S = 2 XXZ Spin Chains with Bond Alternation

Atsuhiro Kitazawa, Kiyohide Nomura

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Based on the universality. concept, we study the S = 3/2 and S = 2 bond-alternating spin chains numerically. In previous papers, the phase diagram of the S = 1 XXZ spin chain with bond alternation was shown to reflect the hidden Z2 × Z2 symmetry. For the higher S Heisenberg spin chain, the successive dimerization transition occurs, and for anisotropic spin chains the phase structure will be more colorful than the S = 1 case. Using recently developed techniques, we show directly that the phase structure of the anisotropic spin chains relates to the Z2 × Z2 symmetry.

Original languageEnglish
Pages (from-to)3379-3382
Number of pages4
Journaljournal of the physical society of japan
Volume66
Issue number11
DOIs
Publication statusPublished - Jan 1 1997
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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