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http://elar.urfu.ru/handle/10995/111090
Название: | Multiple Field-Induced Phases in the Frustrated Triangular Magnet Cs3Fe2Br9 |
Авторы: | 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. |
Дата публикации: | 2021 |
Издатель: | American Physical Society American Physical Society (APS) |
Библиографическое описание: | 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. |
Аннотация: | 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. |
Ключевые слова: | 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://elar.urfu.ru/handle/10995/111090 |
Условия доступа: | info:eu-repo/semantics/openAccess |
Идентификатор РИНЦ: | 47042073 |
Идентификатор SCOPUS: | 85113139814 |
Идентификатор WOS: | 000684127200007 |
Идентификатор PURE: | 22981012 |
ISSN: | 2469-9950 |
DOI: | 10.1103/PhysRevB.104.064418 |
Сведения о поддержке: | 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). |
Располагается в коллекциях: | Научные публикации ученых УрФУ, проиндексированные в SCOPUS и WoS CC |
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Файл | Описание | Размер | Формат | |
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2-s2.0-85113139814.pdf | 3,51 MB | Adobe PDF | Просмотреть/Открыть |
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