Observation of new magnetic ground state in frustrated quantum antiferromagnet spin liquid system Cs2CuCl4

Hyeong-Jin Kim; C. R. S. Haines; C. Liu; Sae Hwan Chun; Kee Hoon Kim; H. T. Yi; Sang-Wook Cheong; Siddharth S. Saxena

doi:10.1063/1.5001282

Observation of new magnetic ground state in frustrated quantum antiferromagnet spin liquid system Cs2CuCl4

Strongly Correlated Electrons 2017-12-18 v1

Authors: Hyeong-Jin Kim , C. R. S. Haines , C. Liu , Sae Hwan Chun , Kee Hoon Kim , H. T. Yi , Sang-Wook Cheong , Siddharth S. Saxena

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Abstract

Cs2CuCl4 is known to possess a quantum spin liquid phase with antiferromagnetic interaction below 2.8 K. We report the observation of a new metastable magnetic phase of the triangular frustrated quantum spin system Cs2CuCl4 induced by the application of hydrostatic pressure. We measured the magnetic properties of Cs2CuCl4 following the application and release of pressure after 3 days. We observed a previously unknown ordered magnetic phase with a transition temperature of 9 K. Furthermore, the recovered sample with new magnetic ground state possesses an equivalent crystal structure to the uncompressed one with antiferromagnetic quantum spin liquid phase.

Keywords

cs2cucl4 quantum spin liquid frustrated antiferromagnet hydrostatic pressure metastable magnetic phase triangular lattice

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@article{arxiv.1712.05624,
  title  = {Observation of new magnetic ground state in frustrated quantum antiferromagnet spin liquid system Cs2CuCl4},
  author = {Hyeong-Jin Kim and C. R. S. Haines and C. Liu and Sae Hwan Chun and Kee Hoon Kim and H. T. Yi and Sang-Wook Cheong and Siddharth S. Saxena},
  journal= {arXiv preprint arXiv:1712.05624},
  year   = {2017}
}

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9 pages, 5 figures 1 table

Observation of new magnetic ground state in frustrated quantum antiferromagnet spin liquid system Cs2CuCl4

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