Investigations into the controllable change of Curie temperature in silver doped lanthanum manganite nanoparticles

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dc.contributor.authorWestlake, Men_AU
dc.contributor.authorLerch, MLFen_AU
dc.contributor.authorKonstantinov, Ken_AU
dc.contributor.authorRule, KCen_AU
dc.contributor.authorYu, DHen_AU
dc.contributor.authorPan, AVen_AU
dc.contributor.authorCardillo, Den_AU
dc.contributor.authorHorvat, Jen_AU
dc.contributor.authorTehei, Men_AU
dc.date.accessioned2021-10-27T22:21:25Zen_AU
dc.date.available2021-10-27T22:21:25Zen_AU
dc.date.issued2016-11-29en_AU
dc.date.statistics2021-10-17en_AU
dc.description.abstractOur team is focused on research into the design, production, characterisation and implementation of optimized nanostructured particles for principally the diagnosis (as CT and MRI contrast agents) and treatment of cancer (using radiation, oncothermia and hyperthermia modalities). One magnetic nanoparticle of current interest is Lanthanum Manganite (LaMnO3) and its silver doped counterpart (La1-xAgxMnO3). The high effective atomic number and magnetic moment of LaMnO3 [1] makes this material appropriate for the basis of an MRI and CT contrast agent and enhancing radiation therapies. In addition La1-xAgxMnO3 is also considered as a good candidate for hyperthermia cancer therapy [2].For the characterization of our samples we used XRD, PPMS, SEM, EDS and SEM. We observed that the Curie temperature increased with the increase of the silver doping concentration in the nanoparticles. This has led to an investigation into the mechanism behind this change. The spin-phonon interaction was considered to represent one potential mechanism and Time of Flight measurements where conducted on PELICAN at ANSTO. A lack of phonon evolution was seen within the temperature range of 1.5K - 300K. In order to access phonon density of states over a broader range of energies, we are then planning to use the Beryllium filter on TAIPAN and scan through a wide energy range while measuring scattered neutron over a vastly increased solid angle. The following poster will focus on the characterizations of our samples, our first experiments on PELICAN and our future planed experiments in the aim to better understand the mechanism that provokes the change of Curie temperature upon silver doping.en_AU
dc.identifier.citationWestlake, M., Lerch, M., Konstantinov, K., Rule, K. C., Yu, D., Pan, A., Cardillo, D., Horvat, J., & Tehei, M. (2016). Investigations into the controllable change of Curie temperature in silver doped lanthanum manganite nanoparticles. Paper presented at 13th AINSE-ANBUG Neutron Scattering Symposium, Sydney, NSW, Australia, 29-30 November 2016.en_AU
dc.identifier.conferenceenddate30 November 2016en_AU
dc.identifier.conferencename13th AINSE-ANBUG Neutron Scattering Symposiumen_AU
dc.identifier.conferenceplaceSydney, NSW, Australiaen_AU
dc.identifier.conferencestartdate29 November 2016en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/12140en_AU
dc.language.isoenen_AU
dc.publisherAustralian Institute of Nuclear Science and Engineeringen_AU
dc.subjectNanostructuresen_AU
dc.subjectNanoparticlesen_AU
dc.subjectLanthanumen_AU
dc.subjectMagnetic momentsen_AU
dc.subjectX-ray diffractionen_AU
dc.subjectCurie pointen_AU
dc.subjectSilveren_AU
dc.subjectTime-of-flight methoden_AU
dc.subjectANSTOen_AU
dc.titleInvestigations into the controllable change of Curie temperature in silver doped lanthanum manganite nanoparticlesen_AU
dc.typeConference Abstracten_AU
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