Berezinskii-Kosterlitz-Thouless Transition of Spin-1 XXZ Chains in a Staggered Magnetic Field

Masayoshi Tsukano, Kiyohide Nomura

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19 Citations (Scopus)


Phase diagram of S = 1 XXZ chain in a staggered magnetic field is obtained numerically. The Berezinskii-Kosterlitz-Thouless transition between the XY and the ant antiferromagnetic phases is studied by the level-spectroscopy. Moreover we find that there is no distinction between the Haldane and the antiferromagnetic phases, since the Gaussian critical line does not appear, in contrast to the S = 1/2 case. It is expected that some hidden Z2 × Z2 symmetry breaking happens not only in the Haldane phase but also in the antiferromagnetic one.

Original languageEnglish
Pages (from-to)302-306
Number of pages5
Journaljournal of the physical society of japan
Issue number1
Publication statusPublished - Jan 1998

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)


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