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07 February 2025

» arxiv » 1109.0063

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Spin-Chirality Separation and S_3-Symmetry Breakings in the Magnetization Plateau of the Quantum Spin Tube
Kouichi Okunishi ; Masahiro Sato ; Toru Sakai ; Kiyomi Okamoto ; Chigak Itoi ;
Date:	1 Sep 2011
Abstract:	We study the magnetization plateau state of the three-leg spin-1/2 tube in the strong rung coupling region, where S_3-symmetry breakings and low-energy chirality degree of freedom play crucial roles. On the basis of the effective chirality model and density matrix renormalization group, we clarify that, as the leg coupling increases, the chirality liquid with gapless non-magnetic excitations, the spin imbalance phase and the vector-spin-chirality ordered phase emerge without closing the plateau spin gap. The relevance of these results to experiments is also discussed.
Source:	arXiv, 1109.0063
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