Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/111090
Title: Multiple Field-Induced Phases in the Frustrated Triangular Magnet Cs3Fe2Br9
Authors: Brüning, D.
Fröhlich, T.
Gorkov, D.
Císařová, I.
Skourski, Y.
Rossi, L.
Bryant, B.
Wiedmann, S.
Meven, M.
Ushakov, A.
Streltsov, S. V.
Khomskii, D.
Becker, P.
Bohatý, L.
Braden, M.
Lorenz, T.
Issue Date: 2021
Publisher: American Physical Society
American Physical Society (APS)
Citation: Multiple Field-Induced Phases in the Frustrated Triangular Magnet Cs3Fe2Br9 / D. Brüning, T. Fröhlich, D. Gorkov et al. // Physical Review B. — 2021. — Vol. 104. — Iss. 6. — 64418.
Abstract: The recently discovered material Cs3Fe2Br9 contains Fe2Br9 bi-octahedra forming triangular layers with hexagonal stacking along the c axis. In contrast to isostructural Cr-based compounds, the zero-field ground state is not a nonmagnetic S=0 singlet-dimer state. Instead, the Fe2Br9 bi-octahedra host semiclassical S=52Fe3+ spins with a pronounced easy-axis anisotropy along c, and interestingly, the intradimer spins are ordered ferromagnetically. The high degree of magnetic frustration due to (various) competing intradimer and interdimer couplings leads to a surprisingly rich magnetic phase diagram. The zero-field ground state is already reached via an intermediate phase, and the high-field magnetization and thermal expansion data for H∥c identify 10 different ordered phases. Among them are phases with constant magnetization of 13, respectively 12, of the saturation value, and several transitions are strongly hysteretic with pronounced length changes, reflecting strong magnetoelastic coupling. © 2021 American Physical Society.
Keywords: BROMINE COMPOUNDS
CESIUM COMPOUNDS
CHROMIUM COMPOUNDS
GROUND STATE
IRON COMPOUNDS
SATURATION MAGNETIZATION
THERMAL EXPANSION
EASY-AXIS ANISOTROPY
FIELD-INDUCED PHASIS
HEXAGONAL STACKING
HIGH-FIELD MAGNETIZATION
INTERDIMER COUPLING
MAGNETIC FRUSTRATIONS
MAGNETIC PHASE DIAGRAMS
MAGNETOELASTIC COUPLINGS
SULFUR COMPOUNDS
URI: http://hdl.handle.net/10995/111090
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85113139814
PURE ID: 22981012
ISSN: 2469-9950
metadata.dc.description.sponsorship: We acknowledge support by the German Research Foundation via Project No. 277146847-CRC 1238 (Subprojects A02, B01, and B04), by the Bundesministerium für Bildung und Forschung, Project No. 05K19PK1, and by the Ministry of Science and Higher Education of Russia via Project Quantum AAAA-A18-118020190095-4. DFT calculations were performed on the Uran supercomputer at the IMM UB RAS. The neutron data were partly taken on the single-crystal diffractometer HEiDi operated jointly by RWTH Aachen University and JCNS within the JARA collaboration. This paper was supported by HFML-RU/NWO-I and HLD-HZDR, members of the European Magnetic Field Laboratory (EMFL).
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

Files in This Item:
File Description SizeFormat 
2-s2.0-85113139814.pdf3,51 MBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.