Robust singlet dimers with fragile ordering in two-dimensional honeycomb lattice of Li2RuO3

Junghwan Park; Teck Yee Tan; D. T. Adroja; A. Daoud-Aladine; Seongil Choi; Deok Yong Cho; Sang Hyun Lee; Jiyeon Kim; Hasung Sim; T. Morioka; H. Nojiri; V. V. Krishnamurthy; P. Manuel; M. R. Lees; S. V. Streltsov; D. I. Khomskii; Je Geun Park

doi:10.1038/srep25238

Robust singlet dimers with fragile ordering in two-dimensional honeycomb lattice of Li₂RuO₃

Junghwan Park, Teck Yee Tan, D. T. Adroja, A. Daoud-Aladine, Seongil Choi, Deok Yong Cho, Sang Hyun Lee, Jiyeon Kim, Hasung Sim, T. Morioka, H. Nojiri, V. V. Krishnamurthy, P. Manuel, M. R. Lees, S. V. Streltsov, D. I. Khomskii, Je Geun Park

Physics

Research output: Contribution to journal › Article › peer-review

26 Citations (Scopus)

Abstract

When an electronic system has strong correlations and a large spin-orbit interaction, it often exhibits a plethora of mutually competing quantum phases. How a particular quantum ground state is selected out of several possibilities is a very interesting question. However, equally fascinating is how such a quantum entangled state breaks up due to perturbation. This important question has relevance in very diverse fields of science from strongly correlated electron physics to quantum information. Here we report that a quantum entangled dimerized state or valence bond crystal (VBC) phase of Li₂RuO₃ shows nontrivial doping dependence as we perturb the Ru honeycomb lattice by replacing Ru with Li. Through extensive experimental studies, we demonstrate that the VBC phase melts into a valence bond liquid phase of the RVB (resonating valence bond) type. This system offers an interesting playground where one can test and refine our current understanding of the quantum competing phases in a single compound.

Original language	English
Article number	25238
Journal	Scientific Reports
Volume	6
Issue number	1
DOIs	https://doi.org/10.1038/srep25238
Publication status	Published - 31 May 2016

ASJC Scopus subject areas

Multidisciplinary

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Park, J., Tan, T. Y., Adroja, D. T., Daoud-Aladine, A., Choi, S., Cho, D. Y., Lee, S. H., Kim, J., Sim, H., Morioka, T., Nojiri, H., Krishnamurthy, V. V., Manuel, P., Lees, M. R., Streltsov, S. V., Khomskii, D. I., & Park, J. G. (2016). Robust singlet dimers with fragile ordering in two-dimensional honeycomb lattice of Li₂RuO₃ Scientific Reports, 6(1), Article 25238. https://doi.org/10.1038/srep25238

@article{d83d13fffa7e4a198d1e7e77614c064b,

title = "Robust singlet dimers with fragile ordering in two-dimensional honeycomb lattice of Li2RuO3 ",

abstract = "When an electronic system has strong correlations and a large spin-orbit interaction, it often exhibits a plethora of mutually competing quantum phases. How a particular quantum ground state is selected out of several possibilities is a very interesting question. However, equally fascinating is how such a quantum entangled state breaks up due to perturbation. This important question has relevance in very diverse fields of science from strongly correlated electron physics to quantum information. Here we report that a quantum entangled dimerized state or valence bond crystal (VBC) phase of Li2RuO3 shows nontrivial doping dependence as we perturb the Ru honeycomb lattice by replacing Ru with Li. Through extensive experimental studies, we demonstrate that the VBC phase melts into a valence bond liquid phase of the RVB (resonating valence bond) type. This system offers an interesting playground where one can test and refine our current understanding of the quantum competing phases in a single compound.",

author = "Junghwan Park and Tan, {Teck Yee} and Adroja, {D. T.} and A. Daoud-Aladine and Seongil Choi and Cho, {Deok Yong} and Lee, {Sang Hyun} and Jiyeon Kim and Hasung Sim and T. Morioka and H. Nojiri and Krishnamurthy, {V. V.} and P. Manuel and Lees, {M. R.} and Streltsov, {S. V.} and Khomskii, {D. I.} and Park, {Je Geun}",

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year = "2016",

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doi = "10.1038/srep25238",

language = "English",

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Park, J, Tan, TY, Adroja, DT, Daoud-Aladine, A, Choi, S, Cho, DY, Lee, SH, Kim, J, Sim, H, Morioka, T, Nojiri, H, Krishnamurthy, VV, Manuel, P, Lees, MR, Streltsov, SV, Khomskii, DI & Park, JG 2016, 'Robust singlet dimers with fragile ordering in two-dimensional honeycomb lattice of Li₂RuO₃ ', Scientific Reports, vol. 6, no. 1, 25238. https://doi.org/10.1038/srep25238

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T1 - Robust singlet dimers with fragile ordering in two-dimensional honeycomb lattice of Li2RuO3

AU - Park, Junghwan

AU - Tan, Teck Yee

AU - Adroja, D. T.

AU - Daoud-Aladine, A.

AU - Choi, Seongil

AU - Cho, Deok Yong

AU - Lee, Sang Hyun

AU - Kim, Jiyeon

AU - Sim, Hasung

AU - Morioka, T.

AU - Nojiri, H.

AU - Krishnamurthy, V. V.

AU - Manuel, P.

AU - Lees, M. R.

AU - Streltsov, S. V.

AU - Khomskii, D. I.

AU - Park, Je Geun

PY - 2016/5/31

Y1 - 2016/5/31

N2 - When an electronic system has strong correlations and a large spin-orbit interaction, it often exhibits a plethora of mutually competing quantum phases. How a particular quantum ground state is selected out of several possibilities is a very interesting question. However, equally fascinating is how such a quantum entangled state breaks up due to perturbation. This important question has relevance in very diverse fields of science from strongly correlated electron physics to quantum information. Here we report that a quantum entangled dimerized state or valence bond crystal (VBC) phase of Li2RuO3 shows nontrivial doping dependence as we perturb the Ru honeycomb lattice by replacing Ru with Li. Through extensive experimental studies, we demonstrate that the VBC phase melts into a valence bond liquid phase of the RVB (resonating valence bond) type. This system offers an interesting playground where one can test and refine our current understanding of the quantum competing phases in a single compound.

AB - When an electronic system has strong correlations and a large spin-orbit interaction, it often exhibits a plethora of mutually competing quantum phases. How a particular quantum ground state is selected out of several possibilities is a very interesting question. However, equally fascinating is how such a quantum entangled state breaks up due to perturbation. This important question has relevance in very diverse fields of science from strongly correlated electron physics to quantum information. Here we report that a quantum entangled dimerized state or valence bond crystal (VBC) phase of Li2RuO3 shows nontrivial doping dependence as we perturb the Ru honeycomb lattice by replacing Ru with Li. Through extensive experimental studies, we demonstrate that the VBC phase melts into a valence bond liquid phase of the RVB (resonating valence bond) type. This system offers an interesting playground where one can test and refine our current understanding of the quantum competing phases in a single compound.

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Robust singlet dimers with fragile ordering in two-dimensional honeycomb lattice of Li₂RuO₃

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