Critical Properties of S=1 Bond-Alternating XXZ Chains and Hidden Z_2×Z_2 Symmetry

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概要

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• Critical properties of the spin-l bond-alternating XXZ cltain are sttrdied ntttaaerically. Thismodel is appropriate to study the VBS picttrre and hidden Z7 x Z7 syuaautaetry concerning tothe Haldane gap problern. The possible phases are the ferromagnetic, the XY, the Haldane,the ditauer and the Neel ones. The critic?t1 properties of this uaaodel can be itaterpreted as theAsl?kin-Teller type reflecting the hiddert .2'2 x Z2 syraanaetry. The phase transitions are of' theBerezinskii-Kosterlitz-Thotrless type (XY-Haldane and XY-diraaer), of the 2D Gattssian type(Haldane-dimer), and of the 2D Ising type (Haldane-Neel and dirauer-Neel). We detertnine thephase botrndary and trnix'ersality class trsing the recent developed techniqtres by the atrtlaors.

• 社団法人日本物理学会の論文
• 1997-12-15

著者

• Nomura Kiyohide

  Department of Physics, Tokyo Institute of Technology

• Kitazawa Atsuhiro

  Department Of Physics Kyusyu University:department Of Physics Tokyo Institute Of Technology

• Nomura Kiyohide

  Department Of Physics Kyusyu University

• Nomura Kiyohide

  Department Of Physics Kyushu Univercity

関連論文

• Phase Diagram of S=1/2 Antiferromagnetic XXZ Chain with Next-Nearest-Neighbor Interactions
• Phase Diagram of S=1 XXZ Chain with Next-Nearest-Neighbor Interaction(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
• Haldane, Large-D, and Intermediate-D States in an S = 2 Quantum Spin Chain with On-Site and XXZ Anisotropies
• Phase Transitions of S=3/2 and S=2 XXZ Spin Chains with Bond Alternation
• Critical Properties of S=1 Bond-Alternating XXZ Chains and Hidden Z_2×Z_2 Symmetry
• Berezinskii-Kosterlitz-Thouless Transition of Spin-1 XXZ Chains in a Staggered Magnetic Field
• Onset of Incommensurability in Quantum Spin Chains

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