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Quantum spin liquid in interacting Kane-Mele model with staggered on-site potential

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Abstract

In this paper, we mainly study the magnetic properties of the interacting Kane-Mele model with staggered on-site potential. Due to the absence of spin rotation symmetry, there exists a spin anisotropic energy term in the effective nonlinear σ model (NLσM). Based on the NLσM with spin anisotropic energy term, we derive a complex phase diagram and find that there exist quantum spin liquid states at the moderate coupling region.

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Authors and Affiliations

  1. Department of Physics, Beijing Normal University, Beijing, 100875, P.R. China

    Yan-Hua Zong, Jing He & Su-Peng Kou

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  1. Yan-Hua Zong
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  2. Jing He
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  3. Su-Peng Kou
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Correspondence to Su-Peng Kou.

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Zong, YH., He, J. & Kou, SP. Quantum spin liquid in interacting Kane-Mele model with staggered on-site potential. Eur. Phys. J. B 86, 28 (2013). https://doi.org/10.1140/epjb/e2012-30514-3

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  • DOI: https://doi.org/10.1140/epjb/e2012-30514-3

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