1998
DOI: 10.1103/physrevlett.81.910
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Incommensurate Spin Correlations in Spin-1/2Frustrated Two-Leg Heisenberg Ladders

Abstract: We develop a low-energy effective theory for spin-1/2 frustrated two-leg Heisenberg spin ladders. We obtain a new type of interchain coupling that breaks parity symmetry. In the presence of an XXZ-type anisotropy, this interaction gives rise to a novel ground state, characterized by incommensurate correlations. In the case of a single ladder, this state corresponds to a spin nematic phase. For a frustrated quasi-onedimensional system of infinitely many weakly coupled chains, this state develops true three dime… Show more

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Cited by 188 publications
(349 citation statements)
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References 10 publications
(31 reference statements)
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“…is the same as the definition of Ref. 17. The inset is the enlarged part where the RG flows to the strong coupling limit can be seen clearly.…”
Section: Bosonization and Low-energy Effective Theorymentioning
confidence: 76%
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“…is the same as the definition of Ref. 17. The inset is the enlarged part where the RG flows to the strong coupling limit can be seen clearly.…”
Section: Bosonization and Low-energy Effective Theorymentioning
confidence: 76%
“…Afterwards, choosing the initial values of a i and b i in the range where J 3 ≫ J 2 , J 1 , we obtain a new solution of the renormalization group equations 17 as shown in Fig. 3, where the RG flows corresponding to H twist go to the strong coupling regime first, which suggests a new phase may come into being.…”
Section: B J3 ≫ J2 J1mentioning
confidence: 99%
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