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|Title:||MoP3SiO11: A4d3 honeycomb antiferromagnet with disconnected octahedra|
|Authors:||Badrtdinov, D. I.|
Tsirlin, A. A.
|Publisher:||American Physical Society|
|Citation:||MoP3SiO11: A4d3 honeycomb antiferromagnet with disconnected octahedra / D. I. Badrtdinov, L. Ding, C. Ritter et al. // Physical Review B. — 2021. — Vol. 104. — Iss. 9. — A16.|
|Abstract:||We report the crystal structure and magnetic behavior of the spin- silicophosphate studied by high-resolution synchrotron x-ray diffraction, neutron diffraction, thermodynamic measurements, and ab initio band-structure calculations. Our data revise the crystallographic symmetry of this compound and establish its rhombohedral space group () along with the geometrically perfect honeycomb lattice of the ions residing in disconnected octahedra. Long-range antiferromagnetic order with the propagation vector observed below K is a combined effect of the nearest-neighbor in-plane exchange coupling K, easy-plane single-ion anisotropy K, and a weak interlayer coupling K. The 12% reduction in the ordered magnetic moment of the ions and the magnon gap of K induced by the single-ion anisotropy further illustrate the impact of spin-orbit coupling on the magnetism. Our analysis puts forward single-ion anisotropy as an important ingredient of honeycomb antiferromagnets despite their nominally quenched orbital moment. ©2021 American Physical Society|
SINGLE ION ANISOTROPY
|metadata.dc.description.sponsorship:||Alexander von Humboldt-Stiftung, AvH; Science and Technology Facilities Council, STFC; Deutsche Forschungsgemeinschaft, DFG: 107745057, TRR80; Bundesministerium für Bildung und Forschung, BMBF; Russian Science Foundation, RSF: 21-72-10136; Horizon 2020: 665593|
We are grateful to Anton Jesche for his continuous laboratory support and essential advice on thermodynamic measurements. The beam time provided by the ILL and ESRF was instrumental for completing this project. We thank Andy Fitch, Catherine Dejoie, and Vera Bader for their help during the data collection at ID22. We also acknowledge support by the HLD at HZDR, member of the European Magnetic Field Laboratory (EMFL).
Russian Science Foundation Alexander von Humboldt-Stiftung Deutsche Forschungsgemeinschaft Horizon 2020 Science and Technology Facilities Council
|RSCF project card:||21-72-10136|
|Appears in Collections:||Научные публикации, проиндексированные в SCOPUS и WoS CC|
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