Quantum spin liquid in frustrated one dimensional LiCuSbO4

S. E. Dutton; M. Kumar; M. Mourigal; Z. G. Soos; J. -J. Wen; C. L. Broholm; N. H. Andersen; Q. Huang; M. Zbiri; R. Toft-Petersen; R. J. Cava

doi:10.1103/PhysRevLett.108.187206

Quantum spin liquid in frustrated one dimensional LiCuSbO4

Strongly Correlated Electrons 2012-05-04 v4

Authors: S. E. Dutton , M. Kumar , M. Mourigal , Z. G. Soos , J. -J. Wen , C. L. Broholm , N. H. Andersen , Q. Huang , M. Zbiri , R. Toft-Petersen , R. J. Cava

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Abstract

A quantum magnet, LiCuSbO4, with chains of edge-sharing S = 1/2 CuO6 octahedra is reported. While the Curie-Weiss constant is ferromagnetic, \theta = 30 K, no phase transition or spin freezing occurs down to 100 mK. Specific heat indicates a distinct high field phase near the 12 T saturation field. Neutron scattering shows incommensurate spin correlations with q = 0.47\pm0.01{\pi}/a and places an upper limit of 70 \mueV on a potential spin gap. Exact diagonalization of easy plane S = 1/2 chains with competing ferro- and antiferromagnetic interactions (J1 = - 75 K, J2 = 34 K) accounts for the T > 2 K data.

Keywords

quantum spin liquids spin excitations in condensed matter magnetic materials and spin systems

Cite

@article{arxiv.1109.4061,
  title  = {Quantum spin liquid in frustrated one dimensional LiCuSbO4},
  author = {S. E. Dutton and M. Kumar and M. Mourigal and Z. G. Soos and J. -J. Wen and C. L. Broholm and N. H. Andersen and Q. Huang and M. Zbiri and R. Toft-Petersen and R. J. Cava},
  journal= {arXiv preprint arXiv:1109.4061},
  year   = {2012}
}

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14 pages, 4 figures

Quantum spin liquid in frustrated one dimensional LiCuSbO4

Abstract

Keywords

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