Journal article
Magnetostriction-driven ground-state stabilization in 2H perovskites
- Abstract:
- The magnetic ground state of Sr3ARuO6, with A=(Li,Na), is studied using neutron diffraction, resonant x-ray scattering, and laboratory characterization measurements of high-quality crystals. Combining these results allows us to observe the onset of long-range magnetic order and distinguish the symmetrically allowed magnetic models, identifying in-plane antiferromagnetic moments and a small ferromagnetic component along the c axis. While the existence of magnetic domains masks the particular in-plane direction of the moments, it has been possible to elucidate the ground state using symmetry considerations. We find that due to the lack of local anisotropy, antisymmetric exchange interactions control the magnetic order, first through structural distortions that couple to in-plane antiferromagnetic moments and second through a high-order magnetoelastic coupling that lifts the degeneracy of the in-plane moments. The symmetry considerations used to rationalize the magnetic ground state are very general and will apply to many systems in this family, such as Ca3ARuO6, with A=(Li,Na), and Ca3LiOsO6 whose magnetic ground states are still not completely understood.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 2.6MB, Terms of use)
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- Publisher copy:
- 10.1103/PhysRevB.94.134404
Authors
+ European Union Horizon 2020 research and innovation programme
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- Grant:
- Marie Skłodowska-Curie Grant Agreement No. 645660
- Publisher:
- American Physical Society
- Journal:
- Physical Review B More from this journal
- Volume:
- 94
- Issue:
- 13
- Pages:
- 134404
- Publication date:
- 2016-10-01
- Acceptance date:
- 2016-09-07
- DOI:
- ISSN:
-
2469-9950 and 2469-9969
- Keywords:
- Pubs id:
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pubs:656482
- UUID:
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uuid:a6ef3941-4b71-4ccb-970a-ebae77d9e594
- Local pid:
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pubs:656482
- Source identifiers:
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656482
- Deposit date:
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2016-11-15
Terms of use
- Copyright holder:
- Porter et al
- Copyright date:
- 2016
- Notes:
-
Copyright 2016 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the
Creative Commons Attribution 3.0 License. Further distribution of
this work must maintain attribution to the author(s) and the published
article's title, journal citation, and DOI. This is the publisher's version of the article. The final version is available online from American Physical Society at: https://doi.org/10.1103/PhysRevB.94.134404
- Licence:
- CC Attribution (CC BY)
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