Dichotomy in temporal and thermal spin correlations observed in the breathing pyrochlore LiGa1−xInxCr4O8
- Authors
- Lee, S.; Do, S.-H.; Lee, W.; Choi, Y.S.; van, Tol J.; Reyes, A.P.; Gorbunov, D.; Chen, W.-T.; Choi, K.-Y.
- Issue Date
- 13-May-2021
- Publisher
- Nature Research
- Citation
- npj Quantum Materials, v.6, no.1
- Journal Title
- npj Quantum Materials
- Volume
- 6
- Number
- 1
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/62421
- DOI
- 10.1038/s41535-021-00347-0
- ISSN
- 2397-4648
2397-4648
- Abstract
- A breathing pyrochlore system is predicted to host a variety of quantum spin liquids. Despite tremendous experimental and theoretical efforts, such sought-after states remain elusive as perturbation terms and lattice distortions lead to magnetic order. Here, we utilize bond alternation and disorder to tune a magnetic ground state in the Cr-based breathing pyrochlore LiGa1−xInxCr4O8. By combining thermodynamic and magnetic resonance techniques, we provide experimental signatures of a spin-liquid-like state in x = 0.8, namely, a nearly T2-dependent magnetic specific heat and persistent spin dynamics by muon spin relaxation (μSR). Moreover, 7Li NMR, ZF-μSR, and ESR unveil the temporal and thermal dichotomy of spin correlations: a tetramer singlet on a slow time scale vs. a spin-liquid-like state on a fast time scale. Our results showcase that a bond disorder in the breathing pyrochlore offers a promising route to disclose exotic magnetic phases. © 2021, The Author(s).
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Collections - College of Natural Sciences > Department of Physics > 1. Journal Articles
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