Complex magnetic properties associated with competing local and itinerant magnetism in Pr2Co0.86Si2.88

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dc.contributor.authorKundu, Men_AU
dc.contributor.authorPakhira, Sen_AU
dc.contributor.authorChoudhary, Ren_AU
dc.contributor.authorPaudyal, Den_AU
dc.contributor.authorLakshminarasimhan, Nen_AU
dc.contributor.authorAvdeev, Men_AU
dc.contributor.authorCottrell, SPen_AU
dc.contributor.authorAdroja, DTen_AU
dc.contributor.authorRanganathan, Ren_AU
dc.contributor.authorMazumdar, Cen_AU
dc.date.accessioned2021-09-21T23:05:40Zen_AU
dc.date.available2021-09-21T23:05:40Zen_AU
dc.date.issued2021-06-24en_AU
dc.date.statistics2021-09-14en_AU
dc.description.abstractTernary intermetallic compound Pr2Co0.86Si2.88 has been synthesized in single phase and characterized by x-ray diffraction, scanning electron microscopy with energy dispersive x-ray spectroscopy (SEM-EDX) analysis, magnetization, heat capacity, neutron diffraction and muon spin rotation/relaxation (μSR) measurements. The polycrystalline compound was synthesized in single phase by introducing necessary vacancies in Co/Si sites. Magnetic, heat capacity, and zero-field neutron diffraction studies reveal that the system undergoes magnetic transition below ∼4 K. Neutron diffraction measurement further reveals that the magnetic ordering is antiferromagnetic in nature with an weak ordered moment. The high temperature magnetic phase has been attributed to glassy in nature consisting of ferromagnetic clusters of itinerant (3d) Co moments as evident by the development of internal field in zero-field μSR below 50 K. The density-functional theory (DFT) calculations suggest that the low temperature magnetic transition is associated with antiferromagnetic coupling between Pr 4f and Co 3d spins. Pr moments show spin fluctuation along with unconventional orbital moment quenching due to crystal field. The evolution of the symmetry and the crystalline electric field environment of Pr-ions are also studied and compared theoretically between the elemental Pr and when it is coupled with other elements such as Co. The localized moment of Pr 4f and itinerant moment of Co 3d compete with each other below ∼20 K resulting in an unusual temperature dependence of magnetic coercivity in the system. This article is licensed under a Creative Commons Attribution 4.0 International License.en_AU
dc.identifier.articlenumber13245en_AU
dc.identifier.citationKundu, M., Pakhira, S., Choudhary, R., Paudyal, D., Lakshminarasimhan, N., Avdeev, M., Cottrell, S., Adroja, D., Ranganathan, R., & Mazumdar, C. (2021). Complex magnetic properties associated with competing local and itinerant magnetism in Pr2Co0.86Si2.88. Scientific Reports, 11, 13245. doi:10.1038/s41598-021-90751-0en_AU
dc.identifier.issn2045-2322en_AU
dc.identifier.journaltitleScientific Reportsen_AU
dc.identifier.urihttps://doi.org/10.1038/s41598-021-90751-0en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/11766en_AU
dc.identifier.volume11en_AU
dc.language.isoenen_AU
dc.publisherSpringer Natureen_AU
dc.subjectMagnetic propertiesen_AU
dc.subjectX-ray diffractionen_AU
dc.subjectScanning electron microscopyen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectSpecific heaten_AU
dc.subjectPolycrystalsen_AU
dc.subjectFerromagnetismen_AU
dc.subjectAntiferromagnetismen_AU
dc.subjectTemperature range 0065-0273 Ken_AU
dc.subjectTemperature dependenceen_AU
dc.titleComplex magnetic properties associated with competing local and itinerant magnetism in Pr2Co0.86Si2.88en_AU
dc.typeJournal Articleen_AU
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