Please use this identifier to cite or link to this item:
http://elar.urfu.ru/handle/10995/117917
Title: | Pressure-induced high-spin/low-spin disproportionated state in the Mott insulator FeBO3 |
Authors: | Xu, W. Dong, W. Layek, S. Shulman, M. Glazyrin, K. Bykova, E. Bykov, M. Hanfland, M. Pasternak, M. P. Leonov, I. Greenberg, E. Rozenberg, G. K. |
Issue Date: | 2022 |
Publisher: | Nature Research |
Citation: | Pressure-induced high-spin/low-spin disproportionated state in the Mott insulator FeBO3 / W. Xu, W. Dong, S. Layek et al. // Scientific Reports. — 2022. — Vol. 12. — Iss. 1. — 9647. |
Abstract: | The pressure-induced Mott insulator-to-metal transitions are often accompanied by a collapse of magnetic interactions associated with delocalization of 3d electrons and high-spin to low-spin (HS-LS) state transition. Here, we address a long-standing controversy regarding the high-pressure behavior of an archetypal Mott insulator FeBO3 and show the insufficiency of a standard theoretical approach assuming a conventional HS-LS transition for the description of the electronic properties of the Mott insulators at high pressures. Using high-resolution x-ray diffraction measurements supplemented by Mössbauer spectroscopy up to pressures ~ 150 GPa, we document an unusual electronic state characterized by a “mixed” HS/LS state with a stable abundance ratio realized in the R3 ¯ c crystal structure with a single Fe site within a wide pressure range of ~ 50–106 GPa. Our results imply an unconventional cooperative (and probably dynamical) nature of the ordering of the HS/LS Fe sites randomly distributed over the lattice, resulting in frustration of magnetic moments. © 2022, The Author(s). |
URI: | http://elar.urfu.ru/handle/10995/117917 |
Access: | info:eu-repo/semantics/openAccess |
SCOPUS ID: | 85131788128 |
WOS ID: | 000809441100067 |
PURE ID: | 30525510 |
ISSN: | 20452322 |
DOI: | 10.1038/s41598-022-13507-4 |
metadata.dc.description.sponsorship: | EAR-1634415; U.S. Department of Energy, USDOE: DE-FG02-94ER14466; Office of Science, SC: DE-AC02-06CH11357; Argonne National Laboratory, ANL; University of Chicago; Israel Science Foundation, ISF: 1189/14, 1552/18, 1748/20; Helmholtz Association; 122021000039-4 The authors would like to thank Dr. A. Chumakov (ESRF, Grenoble, France, Kurchatov Institute, Moscow, Russia) and Dr. G. Smirnov (Kurchatov Institute, Moscow, Russia) who provided us by high-quality single crystals of FeBO, Prof. L. Dubrovinsky and Prof. D. I. Khomskii for valuable discussions, Dr. V. Prakapenka and Dr. I Kantor for experimental assistance with the facilities of the 13ID-D GSECARS beamline of APS and Dr. S. Clark for experimental assistance with the facilities of the beam line 12.2.2 at ALS, Berkeley. We are grateful also to the team of the ID-27 beamline of the European Synchrotron Radiation Facility, Grenoble, for assisting with the powder XRD measurements. A few Mössbauer spectrum at 115 and 140 GPa were collected at the ID-18 beamline of the European Synchrotron Radiation Facility. We are grateful to Dr. D. G. Merkel, Dr. R. Rüffer and Dr. A. Chumakov for their assistance in using beamline ID-18 and Dr. G. Hearne and Dr. E. Carleschi for assisting with the SMS measurements. This research was supported by Israeli Science Foundation (Grants No. 1189/14, No. 1552/18 and No. 1748/20). I.L. acknowledges support by the state assignment of Minobrnauki of Russia (theme “Electron” No. 122021000039-4). Portions of this work were performed at GeoSoilEnviroCARS (The University of Chicago, Sector 13), Advanced Photon Source (APS), Argonne National Laboratory. GeoSoilEnviroCARS is supported by the National Science Foundation–Earth Sciences (EAR-1634415) and Department of Energy– GeoSciences (DE-FG02-94ER14466). This research also used resources of the Advanced Photon Source, a U.S. Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357. We acknowledge DESY (Hamburg, Germany), a member of the Helmholtz Association HGF, for the provision of experimental facilities. Parts of this research were carried out at P02.2 station of PETRA-III, DESY. 3 The authors would like to thank Dr. A. Chumakov (ESRF, Grenoble, France, Kurchatov Institute, Moscow, Russia) and Dr. G. Smirnov (Kurchatov Institute, Moscow, Russia) who provided us by high-quality single crystals of FeBO3 , Prof. L. Dubrovinsky and Prof. D. I. Khomskii for valuable discussions, Dr. V. Prakapenka and Dr. I Kantor for experimental assistance with the facilities of the 13ID-D GSECARS beamline of APS and Dr. S. Clark for experimental assistance with the facilities of the beam line 12.2.2 at ALS, Berkeley. We are grateful also to the team of the ID-27 beamline of the European Synchrotron Radiation Facility, Grenoble, for assisting with the powder XRD measurements. A few Mössbauer spectrum at 115 and 140 GPa were collected at the ID-18 beamline of the European Synchrotron Radiation Facility. We are grateful to Dr. D. G. Merkel, Dr. R. Rüffer and Dr. A. Chumakov for their assistance in using beamline ID-18 and Dr. G. Hearne and Dr. E. Carleschi for assisting with the SMS measurements. This research was supported by Israeli Science Foundation (Grants No. 1189/14, No. 1552/18 and No. 1748/20). I.L. acknowledges support by the state assignment of Minobrnauki of Russia (theme “Electron” No. 122021000039-4). Portions of this work were performed at GeoSoilEnviroCARS (The University of Chicago, Sector 13), Advanced Photon Source (APS), Argonne National Laboratory. GeoSoilEnviroCARS is supported by the National Science Foundation–Earth Sciences (EAR-1634415) and Department of Energy– GeoSciences (DE-FG02-94ER14466). This research also used resources of the Advanced Photon Source, a U.S. Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357. We acknowledge DESY (Hamburg, Germany), a member of the Helmholtz Association HGF, for the provision of experimental facilities. Parts of this research were carried out at P02.2 station of PETRA-III, DESY. |
Appears in Collections: | Научные публикации ученых УрФУ, проиндексированные в SCOPUS и WoS CC |
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