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Classification and properties of quantum spin liquids on the hyperhoneycomb lattice

机译：超蜂窝格上量子自旋液体的分类和性质

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摘要

The family of "Kitaev materials" provides an ideal platform to study quantum spin liquids and their neighboring magnetic orders. Motivated by the possibility of a quantum spin liquid ground slate in pressurized hyperhoneycomb iridale β-Li_2lrO_3, we systematically classify and study symmetric quantum spin liquids on the hyperhoneycomb lattice, using the Abrikosov-fermion representation. Among the 176 symmetric U(1) spin liquids (and 160 Z_2 spin liquids), we identify eight "root" U(1) spin liquids in proximity to the ground state of the solvable Kitave model on the hyperhonecyomb lattice. These eight states are promising candidates for possible U( 1) spin liquid ground states in pressurized β-Li_2lrO_3. We further discuss physical properties of these eight U(1) spin liquid candidates, and show that they all support nodal-line-shaped spinon Fermi surfaces.
机译：“ Kitaev材料”家族为研究量子自旋液体及其邻近的磁阶提供了理想的平台。由于受压的超蜂窝iridaleβ-Li_2lrO_3中存在量子自旋液体地基的可能性，我们使用Abrikosov-fermion表示系统地对超蜂窝格上的对称量子自旋液体进行分类和研究。在176个对称的U（1）自旋液体（和160个Z_2自旋液体）中，我们在超h格晶格上可溶Kitave模型的基态附近识别出八种“根” U（1）自旋液体。这八个状态有望成为加压β-Li_2lrO_3中可能的U（1）自旋液体基态的候选物。我们进一步讨论了这八种U（1）自旋液体候选物的物理性质，并显示它们都支持节点线形的自旋费米表面。

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  • 来源
    《Physical review》 |2018年第19期|195141.1-195141.15|共15页
  • 作者

    Biao Huang; Wonjune Choi; Yong Baek Kim; Yuan-Ming Lu;

  • 作者单位

    Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA;

    Department of Physics and Centre for Quantum Materials, University of Toronto, Toronto, Ontario, Canada M5S 1A7;

    Department of Physics and Centre for Quantum Materials, University of Toronto, Toronto, Ontario, Canada M5S 1A7,Canadian Institute for Advanced Research/Quantum Materials Program, Toronto, Ontario, Canada MSG 1Z8,School of Physics, Korea Institute for Advanced Study, Seoul 130-722, Korea;

    Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA;

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