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Fragile ground state and rigid field-induced structures in the zigzag ladder compound BaDy2O4
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Khalyavin, D. D., Manuel, P., Hatnean, Monica Ciomaga and Petrenko, Oleg (2021) Fragile ground state and rigid field-induced structures in the zigzag ladder compound BaDy2O4. Physical Review B, 103 (13). 134434. doi:10.1103/PhysRevB.103.134434 ISSN 2469-9950.
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WRAP-Fragile-ground-state-rigid-field-induced-structures-zigzag-ladder-BaDy2O4-2021.pdf - Published Version - Requires a PDF viewer. Download (3877Kb) | Preview |
Official URL: http://dx.doi.org/10.1103/PhysRevB.103.134434
Abstract
We report on a sequence of field-induced transitions in the zigzag ladder compound BaDy2O4 studied with powder neutron diffraction and magnetization measurements. In agreement with the previously published results, the low-temperature zero-field structure is characterized by two half-integer propagation vectors k1=[1/2 0 1/2] and k2=[1/2 1/2 1/2]. However, on application of an external magnetic field, the Bragg peaks corresponding to the zero-field structure lose their intensity rather rapidly and disappear completely in a field of 2.5 kOe. In the intermediate fields, 2.5 to 22.5 kOe, new peaks are observed characterized by the propagation vector k′=[0 0 1/3] corresponding to an up-up-down (uud) structure as well as the k= 0 ferromagnetic peaks. This regime of fields corresponds to a pronounced plateau in the magnetization curve. Remarkably, the uud structure survives heating to at least 1.4 K, three times higher temperature than the TN of 0.48 K for the zero-field structure. Above 22.5 kOe, the k' peaks disappear while the k=0 peaks gain significant intensity indicating an increase in the polarization of the system. The analysis of the intensities of the field-induced reflections allows for a clear identification of the magnetic structures in both the intermediate- and high-field regimes.
| 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): | Rare earths, Rare earths -- Magnetic properties, Neutrons -- Diffraction | ||||||||||
| Journal or Publication Title: | Physical Review B | ||||||||||
| Publisher: | American Physical Society | ||||||||||
| ISSN: | 2469-9950 | ||||||||||
| Official Date: | 1 April 2021 | ||||||||||
| Dates: |
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| Volume: | 103 | ||||||||||
| Number: | 13 | ||||||||||
| Article Number: | 134434 | ||||||||||
| DOI: | 10.1103/PhysRevB.103.134434 | ||||||||||
| Status: | Peer Reviewed | ||||||||||
| Publication Status: | Published | ||||||||||
| Copyright Holders: | ©2021 American Physical Society | ||||||||||
| Date of first compliant deposit: | 23 April 2021 | ||||||||||
| Date of first compliant Open Access: | 26 April 2021 | ||||||||||
| RIOXX Funder/Project Grant: |
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