Dichotomy in temporal and thermal spin correlations observed in the breathing pyrochlore LiGa1−x In x Cr4O8

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...

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Autores principales:	S. Lee, S.-H. Do, W. Lee, Y. S. Choi, J. van Tol, A. P. Reyes, D. Gorbunov, W.-T. Chen, K.-Y. Choi
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Materials of engineering and construction. Mechanics of materials TA401-492 Atomic physics. Constitution and properties of matter QC170-197
Acceso en línea:	https://doaj.org/article/985593e050ad4be0a1e1eabe068bb003
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spelling	oai:doaj.org-article:985593e050ad4be0a1e1eabe068bb0032021-12-02T16:50:36ZDichotomy in temporal and thermal spin correlations observed in the breathing pyrochlore LiGa1−x In x Cr4O810.1038/s41535-021-00347-02397-4648https://doaj.org/article/985593e050ad4be0a1e1eabe068bb0032021-05-01T00:00:00Zhttps://doi.org/10.1038/s41535-021-00347-0https://doaj.org/toc/2397-4648Abstract 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−x In x Cr4O8. By combining thermodynamic and magnetic resonance techniques, we provide experimental signatures of a spin-liquid-like state in x = 0.8, namely, a nearly T 2-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.S. LeeS.-H. DoW. LeeY. S. ChoiJ. van TolA. P. ReyesD. GorbunovW.-T. ChenK.-Y. ChoiNature PortfolioarticleMaterials of engineering and construction. Mechanics of materialsTA401-492Atomic physics. Constitution and properties of matterQC170-197ENnpj Quantum Materials, Vol 6, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Materials of engineering and construction. Mechanics of materials TA401-492 Atomic physics. Constitution and properties of matter QC170-197
spellingShingle	Materials of engineering and construction. Mechanics of materials TA401-492 Atomic physics. Constitution and properties of matter QC170-197 S. Lee S.-H. Do W. Lee Y. S. Choi J. van Tol A. P. Reyes D. Gorbunov W.-T. Chen K.-Y. Choi Dichotomy in temporal and thermal spin correlations observed in the breathing pyrochlore LiGa1−x In x Cr4O8
description	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−x In x Cr4O8. By combining thermodynamic and magnetic resonance techniques, we provide experimental signatures of a spin-liquid-like state in x = 0.8, namely, a nearly T 2-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.
format	article
author	S. Lee S.-H. Do W. Lee Y. S. Choi J. van Tol A. P. Reyes D. Gorbunov W.-T. Chen K.-Y. Choi
author_facet	S. Lee S.-H. Do W. Lee Y. S. Choi J. van Tol A. P. Reyes D. Gorbunov W.-T. Chen K.-Y. Choi
author_sort	S. Lee
title	Dichotomy in temporal and thermal spin correlations observed in the breathing pyrochlore LiGa1−x In x Cr4O8
title_short	Dichotomy in temporal and thermal spin correlations observed in the breathing pyrochlore LiGa1−x In x Cr4O8
title_full	Dichotomy in temporal and thermal spin correlations observed in the breathing pyrochlore LiGa1−x In x Cr4O8
title_fullStr	Dichotomy in temporal and thermal spin correlations observed in the breathing pyrochlore LiGa1−x In x Cr4O8
title_full_unstemmed	Dichotomy in temporal and thermal spin correlations observed in the breathing pyrochlore LiGa1−x In x Cr4O8
title_sort	dichotomy in temporal and thermal spin correlations observed in the breathing pyrochlore liga1−x in x cr4o8
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/985593e050ad4be0a1e1eabe068bb003
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Dichotomy in temporal and thermal spin correlations observed in the breathing pyrochlore LiGa1−x In x Cr4O8

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