Antiferromagnetic order of ferromagnetically coupled dimers in the double pyrovanadate CaCoV2O7

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dc.contributor.authorMurasaki, Ren_AU
dc.contributor.authorNawa, Ken_AU
dc.contributor.authorOkuyama, Den_AU
dc.contributor.authorAvdeev, Men_AU
dc.contributor.authorSato, TJen_AU
dc.date.accessioned2021-12-21T01:29:08Zen_AU
dc.date.available2021-12-21T01:29:08Zen_AU
dc.date.issued2021-08-02en_AU
dc.date.statistics2021-09-14en_AU
dc.descriptionThis is a preprint. Preprints and early-stage research may not have been peer reviewed yet.en_AU
dc.description.abstractMagnetic properties of the pyrovanadate CaCoV2O7 have been studied by means of the bulk magnetization and neutron powder diffraction measurements. Magnetic susceptibility in the paramagnetic phase shows Curie-Weiss behavior with negative Weiss temperature ≃ −22.5 K, indicating dominant antiferromagnetic interactions. At TN = 3.44 K, CaCoV2O7 shows antiferromagnetic order, accompanied by a weak net ferromagnetic moment of ∼ 0.05 μB/Co2+. Neutron powder diffraction confirms the formation of antiferromagnetic order below TN. It was further confirmed from the magnetic structure determination that the two Co2+ ions in the adjacent edge-sharing octahedra have almost parallel (ferromagnetic) spin arrangement, indicative of a formation of a ferromagnetic spin dimer. The antiferromagnetic order is, in turn, stabilized by sizable inter-dimer antiferromagnetic interactions.en_AU
dc.identifier.articlenumberarXiv:2108.00715en_AU
dc.identifier.citationMurasaki, R., Nawa, K., Okuyama, D., Avdeev, M., & Sato, T. (2021). Antiferromagnetic order of ferromagnetically coupled dimers in the double pyrovanadate CaCoV2O7. arXiv Condensed Matter, arXiv:2108.00715. doi:10.48550/arXiv.2108.00715 en_AU
dc.identifier.journaltitlearXiv Condensed Matteren_AU
dc.identifier.urihttps://arxiv.org/abs/2108.00715 en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/12612en_AU
dc.identifier.volume4en_AU
dc.language.isoenen_AU
dc.publisherCornell Universityen_AU
dc.subjectMagnetic propertiesen_AU
dc.subjectAntiferromagnetismen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectMagnetizationen_AU
dc.subjectCarbonen_AU
dc.subjectCopperen_AU
dc.subjectVanadiumen_AU
dc.subjectTransition elementsen_AU
dc.titleAntiferromagnetic order of ferromagnetically coupled dimers in the double pyrovanadate CaCoV2O7en_AU
dc.typeJournal Articleen_AU
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