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Field-temperature phase diagram of the enigmatic Nd2(Zr1−xTix)2O7 pyrochlore magnets
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Léger, M., Lhotel, E., Ressouche, E., Beauvois, K., Damay, F., Paulsen, C., Al-Mawla, A., Suard, E., Ciomaga Hatnean, Monica, Balakrishnan, Geetha and Petit, S. (2021) Field-temperature phase diagram of the enigmatic Nd2(Zr1−xTix)2O7 pyrochlore magnets. Physical Review B, 103 (21). 214449. doi:10.1103/PhysRevB.103.214449
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Official URL: http://dx.doi.org/10.1103/PhysRevB.103.214449
Abstract
By combining neutron scattering and magnetization measurements down to 80 mK, we determine the (H, T ) phase diagram of the Nd2(Zr1−xTix )2O7 pyrochlore magnet compounds. In those samples, Zr is partially substituted by Ti, hence tuning the exchange parameters and testing the robustness of the various phases. In all samples, the ground state remains all in/all out, while the field induces phase transitions toward new states characterized by two in–two out or one out–three in/one in–three out configurations. These transitions manifest as metamagnetic singularities in the magnetization versus field measurements. Strikingly, it is found that moderate substitution reinforces the stability of the all in/all out phase: the Néel temperature, the metamagnetic fields along with the ordered magnetic moment, are higher in substituted samples with x < 10%.
| Item Type: | Journal Article | |||||||||||||||
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| Subjects: | Q Science > QC Physics | |||||||||||||||
| Divisions: | Faculty of Science > Physics | |||||||||||||||
| Library of Congress Subject Headings (LCSH): | Neutrons -- Scattering , Magnetism, Spin waves, Ferromagnetism | |||||||||||||||
| Journal or Publication Title: | Physical Review B | |||||||||||||||
| Publisher: | American Physical Society | |||||||||||||||
| ISSN: | 2469-9950 | |||||||||||||||
| Official Date: | 28 June 2021 | |||||||||||||||
| Dates: |
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| Volume: | 103 | |||||||||||||||
| Number: | 21 | |||||||||||||||
| Article Number: | 214449 | |||||||||||||||
| DOI: | 10.1103/PhysRevB.103.214449 | |||||||||||||||
| Status: | Peer Reviewed | |||||||||||||||
| Publication Status: | Published | |||||||||||||||
| Access rights to Published version: | Restricted or Subscription Access | |||||||||||||||
| Copyright Holders: | ©2021 American Physical Society | |||||||||||||||
| RIOXX Funder/Project Grant: |
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