Journal article
Dimensional reduction by geometrical frustration in a cubic antiferromagnet composed of tetrahedral clusters
- Abstract:
- Dimensionality is a critical factor in determining the properties of solids and is an apparent built-in character of the crystal structure. However, it can be an emergent and tunable property in geometrically frustrated spin systems. Here, we study the spin dynamics of the tetrahedral cluster antiferromagnet, pharmacosiderite, via muon spin resonance and neutron scattering. We find that the spin correlation exhibits a two-dimensional characteristic despite the isotropic connectivity of tetrahedral clusters made of spin 5/2 Fe3+ ions in the three-dimensional cubic crystal, which we ascribe to two-dimensionalisation by geometrical frustration based on spin wave calculations. Moreover, we suggest that even one-dimensionalisation occurs in the decoupled layers, generating low-energy and one-dimensional excitation modes, causing large spin fluctuation in the classical spin system. Pharmacosiderite facilitates studying the emergence of low-dimensionality and manipulating anisotropic responses arising from the dimensionality using an external magnetic field.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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- Files:
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(Supplementary materials, 18.4MB, Terms of use)
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(Preview, Version of record, 3.4MB, Terms of use)
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- Publisher copy:
- 10.1038/s41467-021-24636-1
Authors
- Publisher:
- Nature Research
- Journal:
- Nature Communications More from this journal
- Volume:
- 12
- Issue:
- 1
- Article number:
- 4382
- Publication date:
- 2021-07-19
- Acceptance date:
- 2021-06-28
- DOI:
- EISSN:
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2041-1723
- Language:
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English
- Keywords:
- Pubs id:
-
1186929
- Local pid:
-
pubs:1186929
- Deposit date:
-
2021-07-19
Terms of use
- Copyright holder:
- Okuma et al.
- Copyright date:
- 2021
- Rights statement:
- © The Authors 2021. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
- Licence:
- CC Attribution (CC BY)
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