Dimensional reduction by geometrical frustration in a cubic antiferromagnet composed of tetrahedral clusters

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dc.contributor.authorOkuma, Ren_AU
dc.contributor.authorKofu, Men_AU
dc.contributor.authorAsai, Sen_AU
dc.contributor.authorAvdeev, Men_AU
dc.contributor.authorKoda, Aen_AU
dc.contributor.authorOkabe, Hen_AU
dc.contributor.authorHiraishi, Men_AU
dc.contributor.authorTakeshita, Sen_AU
dc.contributor.authorKojima, KMen_AU
dc.contributor.authorKadono, Ren_AU
dc.contributor.authorMasuda, Ten_AU
dc.contributor.authorNakajima, Ken_AU
dc.contributor.authorHiroi, Zen_AU
dc.date.accessioned2021-09-13T22:14:03Zen_AU
dc.date.available2021-09-13T22:14:03Zen_AU
dc.date.issued2021-07-19en_AU
dc.date.statistics2021-09-07en_AU
dc.description.abstractDimensionality 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. © 2021, The Author(s)en_AU
dc.identifier.articlenumber4382en_AU
dc.identifier.citationOkuma, R., Kofu, M., Asai, S., Avdeev, M., Koda, A., Okabe, H., Hiraishi, M., Takeshita, S., Kojima, K. M., Kadono, R., Masuda, T., Nakajima, K., & Hiroi, Z. (2021). Dimensional reduction by geometrical frustration in a cubic antiferromagnet composed of tetrahedral clusters. Nature Communications, 12, 4382. doi:10.1038/s41467-021-24636-1en_AU
dc.identifier.issn2041-1723en_AU
dc.identifier.journaltitleNature Communicationsen_AU
dc.identifier.urihttps://doi.org/10.1038/s41467-021-24636-1en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/11681en_AU
dc.identifier.volume12en_AU
dc.language.isoenen_AU
dc.publisherSpringer Natureen_AU
dc.subjectMagnetic propertiesen_AU
dc.subjectPhase transformationsen_AU
dc.subjectCrystal structureen_AU
dc.subjectSpinen_AU
dc.subjectAntiferromagnetismen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectMagnetic fieldsen_AU
dc.titleDimensional reduction by geometrical frustration in a cubic antiferromagnet composed of tetrahedral clustersen_AU
dc.typeJournal Articleen_AU
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