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Discovery of quantum phases in the Shastry-Sutherland compound SrCu₂(BO₃)₂ under extreme conditions of field and pressure

Shi, Zhenzhong and Dissanayake, Sachith and Corboz, Philippe and Steinhardt, William and Graf, David and Silevitch, D. M. and Dabkowska, Hanna A. and Rosenbaum, T. F. and Mila, Frédéric and Haravifard, Sara (2022) Discovery of quantum phases in the Shastry-Sutherland compound SrCu₂(BO₃)₂ under extreme conditions of field and pressure. Nature Communications, 13 . Art. No. 2301. ISSN 2041-1723. PMCID PMC9050886. doi:10.1038/s41467-022-30036-w. https://resolver.caltech.edu/CaltechAUTHORS:20220428-200427277

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Abstract

The 2-dimensional layered oxide material SrCu₂(BO₃)₂, long studied as a realization of the Shastry-Sutherland spin topology, exhibits a range of intriguing physics as a function of both hydrostatic pressure and magnetic field, with a still debated intermediate plaquette phase appearing at approximately 20 kbar and a possible deconfined critical point at higher pressure. Here, we employ a tunnel diode oscillator (TDO) technique to probe the behavior in the combined extreme conditions of high pressure, high magnetic field, and low temperature. We reveal an extensive phase space consisting of multiple magnetic analogs of the elusive supersolid phase and a magnetization plateau. In particular, a 10 × 2 supersolid and a 1/5 plateau, identified by infinite Projected Entangled Pair States (iPEPS) calculations, are found to rely on the presence of both magnetic and non-magnetic particles in the sea of dimer singlets. These states are best understood as descendants of the full-plaquette phase, the leading candidate for the intermediate phase of SrCu₂(BO₃)₂.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1038/s41467-022-30036-wDOIArticle
http://www.ncbi.nlm.nih.gov/pmc/articles/pmc9050886/PubMed CentralArticle
https://arxiv.org/abs/2107.02929arXivDiscussion Paper
ORCID:
AuthorORCID
Shi, Zhenzhong0000-0001-8033-8041
Dissanayake, Sachith0000-0002-4703-6516
Corboz, Philippe0000-0003-1024-1230
Steinhardt, William0000-0001-5953-8815
Graf, David0000-0001-6195-0462
Silevitch, D. M.0000-0002-6347-3513
Dabkowska, Hanna A.0000-0002-1680-8739
Mila, Frédéric0000-0003-4306-7996
Haravifard, Sara0000-0003-1852-5190
Alternate Title:Discovery of quantum phases in the Shastry-Sutherland compound SrCu₂(BO₃)₂ under extreme conditions of field and pressure, Phase diagram of the Shastry-Sutherland Compound SrCu2(BO3)2 under extreme combined conditions of field and pressure, Phase diagram of the Shastry-Sutherland Compound SrCu2(BO3)2 under extreme combined conditions of field and pressure
Additional Information:© The Author(s) 2022. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. Received 09 August 2021; Accepted 07 April 2022; Published 28 April 2022. We are grateful to Casey Marjerrison for her assistance with crystal growth activities at the early stages of this project. A portion of this work was performed at the National High Magnetic Field Laboratory, which is supported by the National Science Foundation Cooperative Agreement No. DMR-1157490 and DMR-1644779, the State of Florida and the U.S. Department of Energy. Z.S., S.D., W.S., and S.H. acknowledge support provided by funding from the Powe Junior Faculty Enhancement Award, and William M. Fairbank Chair in Physics at Duke University. D.M.S. and T.F.R. acknowledge support from US Department of Energy Basic Energy Sciences Award DE-SC0014866. P.C. and F.M. acknowledge the support provided by Swiss National Science Foundation and the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (grant agreements No 677061 and No 101001604). Data availability: The data that support the findings of this study are available within the paper and the Supplementary Information. Additional data related to this paper may be requested from the authors. Contributions: Research conceived by S.H.; Single-crystal SCBO samples grown by H.A.D. and S.H.; High-field measurements performed by Z.S., S.D., W.S., D.G., and S.H., and analyzed by Z.S., S.D., D.M.S., T.F.R., and S.H.; iPEPS calculations performed by P.C. and F.M.; manuscript written by Z.S., P.C., F.M., D.M.S., T.F.R., and S.H.; all authors commented on the manuscript. The authors declare no competing interests. Peer review information: Nature Communications thanks Masashi Takigawa, and the other, anonymous, reviewer(s) for their contribution to the peer review of this work. Peer reviewer reports are available.
Funders:
Funding AgencyGrant Number
NSFDMR-1157490
NSFDMR-1644779
State of FloridaUNSPECIFIED
Duke UniversityUNSPECIFIED
Department of Energy (DOE)DE-SC0014866
Swiss National Science Foundation (SNSF)UNSPECIFIED
European Research Council (ERC)677061
European Research Council (ERC)101001604
Subject Keywords:Magnetic properties and materials; Phase transitions and critical phenomena
PubMed Central ID:PMC9050886
DOI:10.1038/s41467-022-30036-w
Record Number:CaltechAUTHORS:20220428-200427277
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20220428-200427277
Official Citation:Shi, Z., Dissanayake, S., Corboz, P. et al. Discovery of quantum phases in the Shastry-Sutherland compound SrCu2(BO3)2 under extreme conditions of field and pressure. Nat Commun 13, 2301 (2022). https://doi.org/10.1038/s41467-022-30036-w
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:114508
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:28 Apr 2022 20:40
Last Modified:05 May 2022 15:58

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