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Akbari-Sharbaf A, Sinclair R, Verrier A, Ziat D, Zhou HD, Sun XF, Quilliam JA. Tunable Quantum Spin Liquidity in the 1/6th-Filled Breathing Kagome Lattice. Phys Rev Lett 2018; 120:227201. [PMID: 29906141 DOI: 10.1103/physrevlett.120.227201] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Revised: 03/23/2018] [Indexed: 06/08/2023]
Abstract
We present measurements on a series of materials, Li_{2}In_{1-x}Sc_{x}Mo_{3}O_{8}, that can be described as a 1/6th-filled breathing kagome lattice. Substituting Sc for In generates chemical pressure which alters the breathing parameter nonmonotonically. Muon spin rotation experiments show that this chemical pressure tunes the system from antiferromagnetic long range order to a quantum spin liquid phase. A strong correlation with the breathing parameter implies that it is the dominant parameter controlling the level of magnetic frustration, with increased kagome symmetry generating the quantum spin liquid phase. Magnetic susceptibility measurements suggest that this is related to distinct types of charge order induced by changes in lattice symmetry, in line with the theory of Chen et al. [Phys. Rev. B 93, 245134 (2016)PRBMDO2469-995010.1103/PhysRevB.93.245134]. The specific heat for samples at intermediate Sc concentration, which have the minimum breathing parameter, show consistency with the predicted U(1) quantum spin liquid.
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Affiliation(s)
- A Akbari-Sharbaf
- Institut Quantique and Département de Physique, Université de Sherbrooke, 2500 boulevard de l'Université, Sherbrooke, Québec J1K 2R1, Canada
| | - R Sinclair
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996-1200, USA
| | - A Verrier
- Institut Quantique and Département de Physique, Université de Sherbrooke, 2500 boulevard de l'Université, Sherbrooke, Québec J1K 2R1, Canada
| | - D Ziat
- Institut Quantique and Département de Physique, Université de Sherbrooke, 2500 boulevard de l'Université, Sherbrooke, Québec J1K 2R1, Canada
| | - H D Zhou
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996-1200, USA
- Key Laboratory of Artificial Structures and Quantum Control, Ministry of Education, School of Physics and Astronomy, Shanghai JiaoTong University, Shanghai 200240, China
| | - X F Sun
- Department of Physics, Hefei National Laboratory for Physical Sciences at Microscale and Key Laboratory of Strongly-Coupled Quantum Matter Physics, CAS, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
- Institute of Physical Science and Information Technology, Anhui University, Hefei, Anhui 230601, People's Republic of China
- Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, Jiangsu 210093, People's Republic of China
| | - J A Quilliam
- Institut Quantique and Département de Physique, Université de Sherbrooke, 2500 boulevard de l'Université, Sherbrooke, Québec J1K 2R1, Canada
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