@article{83719121441f400db5e5b756d5424b10,
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}",
note = "Funding Information: We thank J. Park, H. Jung, and J. Taylor for their help with some of the experiments. We acknowledge D.C. Ahn for technical assistance during our experiments at the Pohang Accelerator Laboratory, and W. Kockelmann for his help on GEM measurements. We also thank S. Nagler, G. Balakrishnan, A.D. Hillier, Y.B. Kim, J.T. Chalker, Z.V. Pchelkina, M.A. Korotin and E.K. Moon for useful discussions. The work at the IBS CCES was supported by the research programme of Institute for Basic Science (IBS-R009-G1). Theoretical calculations and analysis of the results were supported by Russian Scientific Foundation through program 14-22-00004 via work of S.V.S. and the work of D.Kh. was supported by the Koeln University via German excellence initiative and by the German project FOR 1346. DTA would like to thank CMPC-STFC (grant number CMPC-09108) for financial support. Publisher Copyright: {\textcopyright} 2016, The Author(s).",
year = "2016",
month = may,
day = "31",
doi = "10.1038/srep25238",
language = "English",
volume = "6",
journal = "Scientific Reports",
issn = "2045-2322",
publisher = "Nature Publishing Group",
number = "1",
}