Haldane to Dimer Phase Transition in the Spin-1 Haldane System with Bond-Alternating Nearest-Neighbor and Uniform Next-Nearest-Neighbor Exchange Interactions

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Takashi, Tonegawa; Makoto, Kaburagi; Takeshi, Nakao;
  • Journal: 東北大学研究所報告. A集, 物理学・化学・冶金学 = Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy,volume 40,issue 2,pages239-242 (issn: 0040-8808)
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  • Subject: competing exchange interaction | Haldane to dimer phase transition | spin-1 Haldane system | ground-state phase diagram | bond alternation
    arxiv: Condensed Matter::Strongly Correlated Electrons

The Haldane to dimer phase transition is studied in the spin-1 Haldane system with bond-alternating nearest-neighbor and uniform next-nearest-neighbor exchange interactions, where both interactions are antiferromagnetic and thus compete with each other. By using a metho... View more
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