Elucidation of the electronic structure in lanthanoid-radical systems by inelastic neutron scattering

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dc.contributor.authorDunstan, MAen_AU
dc.contributor.authorCalvello, Sen_AU
dc.contributor.authorSoncini, Aen_AU
dc.contributor.authorKrause-Heuer, AMen_AU
dc.contributor.authorMole, RAen_AU
dc.contributor.authorBoskovic, Cen_AU
dc.date.accessioned2023-10-24T01:26:55Zen_AU
dc.date.available2023-10-24T01:26:55Zen_AU
dc.date.issued2021-11-24en_AU
dc.date.statistics2023-04-27en_AU
dc.description.abstractSingle-molecule magnets (SMMs) are metal organic compounds which exhibit magnetic hysteresis and slow magnetic relaxation at low temperature. They have potential applications in high density data storage, quantum computing, and molecular spintronics. Coordination complexes of the trivalent lanthanoid (Ln(III)) ions are the current best performing SMMs, with examples showing hysteresis above liquid nitrogen temperature.[1] The magnetic properties of Ln(III) ions stems from the crystal field (CF) splitting of the ground Russel-Saunders state. These CF states give rise to the energy barrier to reversal of magnetisation, and can be tuned by modification of the ligand environment around the Ln(III) centre. Slow magnetic relaxation in Ln-SMMs can also be modulated by the introduction of magnetic exchange coupling with another magnetic moment, such as that of an organic radical ligand.[2] Quantifying the magnitude of magnetic exchange coupling in many Ln(III) systems is, however, difficult using conventional magnetometric techniques, due to the often large spin-orbit coupling. Inelastic neutron scattering (INS) is an ideal spectroscopic tool to measure both CF splitting and magnetic exchange coupling in Ln(III) systems.[3] We have used INS measurements to elucidate the magnetic exchange coupling and CF splitting in Ln(III)-semiquinonate complexes. Using this information we have rationalised the magnetic properties of these compounds, with the hope that a better understanding of the magnetic exchange in these systems can be used to design SMMs with improved performance. © 2021 The Authorsen_AU
dc.identifier.articlenumber98en_AU
dc.identifier.citationDunstan, M., Calvello, S., Soncini, A., Krause-Heuer, A., Mole, R., & Boskovic, C. (2021). Elucidation of the electronic structure in lanthanoid-radical systems by inelastic neutron scattering. Presentation to the ANSTO User Meeting, Online, 24-26 November 2021. Retrieved from: https://events01.synchrotron.org.au/event/146/contributions/4295/contribution.pdfen_AU
dc.identifier.conferenceenddate2021-11-26en_AU
dc.identifier.conferencenameANSTO User Meeting 2021en_AU
dc.identifier.conferenceplaceOnlineen_AU
dc.identifier.conferencestartdate2021-11-24en_AU
dc.identifier.urihttps://events01.synchrotron.org.au/event/146/contributions/4295/contribution.pdfen_AU
dc.identifier.urihttps://apo.ansto.gov.au/handle/10238/15164en_AU
dc.language.isoenen_AU
dc.publisherAustralian Nuclear Science and Technology Organisationen_AU
dc.relation.urihttps://events01.synchrotron.org.au/event/146/contributions/4295/contribution.pdfen_AU
dc.subjectElectronic structureen_AU
dc.subjectInelastic scatteringen_AU
dc.subjectOrganic compoundsen_AU
dc.subjectQuantum computersen_AU
dc.subjectMagnetsen_AU
dc.subjectLigandsen_AU
dc.subjectSpinen_AU
dc.subjectHysteresisen_AU
dc.subjectMagnetic propertiesen_AU
dc.titleElucidation of the electronic structure in lanthanoid-radical systems by inelastic neutron scatteringen_AU
dc.typeConference Presentationen_AU
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