Giant magnetocapacitance in cerium sesquioxide

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dc.contributor.authorKolodiazhnyi, Ten_AU
dc.contributor.authorSakurai, Hen_AU
dc.contributor.authorAvdeev, Men_AU
dc.contributor.authorCharoonsuk, Ten_AU
dc.contributor.authorLamonova, KVen_AU
dc.contributor.authorPashkevich, YGen_AU
dc.contributor.authorKennedy, BJen_AU
dc.date.accessioned2021-03-25T01:42:10Zen_AU
dc.date.available2021-03-25T01:42:10Zen_AU
dc.date.issued2018-08-22en_AU
dc.date.statistics2021-03-23en_AU
dc.description.abstractWe report structural, magnetic, magnetodielectric, and specific heat properties of hexagonal polymorph of Ce2O3. The A-type hexagonal Ce2O3 crystallizes in the P¯32/m1 space group and shows antiferromagnetic ordering at TN≈6.2 K as detected by magnetic susceptibility measurements. The magnetic ordering is accompanied by a λ-shape specific heat anomaly with a peak maximum at T≈6.1 K. An isotropic dielectric constant demonstrates a large magnetocapacitance effect at T=TN, which saturates at ∼80 kOe. In the magnetically ordered phase the relaxation rate of the dielectric polarization increases with the magnetic field and shows divergence as the temperature approaches TN. The magnetic calculations indicate that Ce 2O3 undergoes “easy plane” AFM ordering, which is also supported by the neutron diffraction data. ©2018 American Physical Societyen_AU
dc.identifier.articlenumber54423en_AU
dc.identifier.citationKolodiazhnyi, T., Sakurai, H., Avdeev, M., , Lamonova, K. V., Pashkevich, Y. G., & Kennedy, B. J. (2018). Giant magnetocapacitance in cerium sesquioxide. Physical Review B, 98(5), 054423. doi:10.1103/PhysRevB.98.054423en_AU
dc.identifier.issn2469-9969en_AU
dc.identifier.issue5en_AU
dc.identifier.journaltitlePhysical Review Ben_AU
dc.identifier.urihttps://doi.org/10.1103/PhysRevB.98.054423en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/10610en_AU
dc.identifier.volume98en_AU
dc.language.isoenen_AU
dc.publisherAmerican Physical Societyen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectMagnetismen_AU
dc.subjectSpecific heaten_AU
dc.subjectPhase transformationsen_AU
dc.subjectDielectric propertiesen_AU
dc.subjectAntiferromagnetismen_AU
dc.titleGiant magnetocapacitance in cerium sesquioxideen_AU
dc.typeJournal Articleen_AU
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