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Magnetic structure, excitations, and field-induced transitions in the honeycomb lattice compound Er2Si2O7
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Islam, Manisha, d'Ambrumenil, N., Khalyavin, D. D., Manuel, P., Orlandi, F., Ollivier, J., Ciomaga Hatnean, Monica, Balakrishnan, Geetha and Petrenko, Oleg (2024) Magnetic structure, excitations, and field-induced transitions in the honeycomb lattice compound Er2Si2O7. Physical Review B (Condensed Matter and Materials Physics), 109 (9). 094420. doi:10.1103/PhysRevB.109.094420 ISSN 1098-0121.
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PhysRevB.109.094420.pdf - Published Version - Requires a PDF viewer. Available under License Creative Commons Attribution 4.0. Download (3480Kb) | Preview |
Official URL: http://doi.org/10.1103/PhysRevB.109.094420
Abstract
We investigate the magnetic properties of the monoclinic D-type
Er2Si2O7 with a distorted honeycomb lattice using powder and single-crystal neutron scattering techniques, as well as single-crystal magnetization measurements. The powder neutron diffraction shows that below the ordering temperature, TN=1.85K, the compound forms a
q=0 antiferromagnetic structure with four sublattices. For H∥a, magnetization measurements reveal a narrow but clearly visible plateau at one-third of the magnetization saturation value. The plateau's stabilization is accompanied by a significant increase of the magnetic unit cell, as the magnetic peaks with fractional indices are observed in single-crystal neutron diffraction experiments. At low temperatures, the inelastic neutron scattering measurements reveal the presence of low-energy, almost dispersionless excitations. Their spectrum is sensitive to the applied field, it significantly softens on the magnetization plateau, and demonstrates the behavior expected for a noncollinear Ising antiferromagnet away from the plateau.
Item Type: | Journal Article | |||||||||
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Subjects: | Q Science > QC Physics | |||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | |||||||||
Library of Congress Subject Headings (LCSH): | Antiferromagnetism, Magnetism, Spin waves, Magnetic materials, Phase transformations (Statistical physics) | |||||||||
Journal or Publication Title: | Physical Review B (Condensed Matter and Materials Physics) | |||||||||
Publisher: | American Physical Society | |||||||||
ISSN: | 1098-0121 | |||||||||
Official Date: | 14 March 2024 | |||||||||
Dates: |
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Volume: | 109 | |||||||||
Number: | 9 | |||||||||
Article Number: | 094420 | |||||||||
DOI: | 10.1103/PhysRevB.109.094420 | |||||||||
Status: | Peer Reviewed | |||||||||
Publication Status: | Published | |||||||||
Access rights to Published version: | Open Access (Creative Commons) | |||||||||
Date of first compliant deposit: | 29 April 2024 | |||||||||
Date of first compliant Open Access: | 30 April 2024 | |||||||||
RIOXX Funder/Project Grant: |
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