Phonon mode softening at the ferroelectric transition in Eu0.5Ba0.5TiO3

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dc.contributor.authorRowan-Weetaluktuk, WNen_AU
dc.contributor.authorRyan, DHen_AU
dc.contributor.authorSushkov, AOen_AU
dc.contributor.authorEckel, Sen_AU
dc.contributor.authorLamoreaux, SKen_AU
dc.contributor.authorSushkov, OPen_AU
dc.contributor.authorCadogan, JMen_AU
dc.contributor.authorYethiraj, Men_AU
dc.contributor.authorStuder, AJen_AU
dc.date.accessioned2023-06-29T06:20:18Zen_AU
dc.date.available2023-06-29T06:20:18Zen_AU
dc.date.issued2010-11-10en_AU
dc.date.statistics2023-02-08en_AU
dc.description.abstractWe have observed the effects of phonon mode softening at the ferroelectric transition in Eu0.5Ba0.5TiO3 by 151Eu Mössbauer spectroscopy. Both Eu2+ and Eu3+ spectral components are observed in the relative area ratio of 90% : 10% and both show a decrease in subspectral area at the transition, centred at 175 K, due to phonon mode softening. Surprisingly, the temperature dependence of the f-factor shows a much stronger response in the Eu3+ component than in the Eu2+ one. Preliminary analysis of neutron powder diffraction data rules out the possibility that some of the europium might be located on titanium sites. © 2010 Springer Science Business Media B.V.en_AU
dc.identifier.citationRowan-Weetaluktuk, W. N., Ryan, D. H., Sushkov, A. O., Eckel, S., Lamoreaux, S. K., Sushkov, O. P., Cadogan, J. M., Yethiraj, M. & Studer, A. J. (2010). Phonon mode softening at the ferroelectric transition in Eu 0.5 Ba 0.5 TiO 3. Hyperfine Interactions, 198, 1-4. doi:10.1007/s10751-010-0204-5en_AU
dc.identifier.issn0304-3843en_AU
dc.identifier.journaltitleHyperfine Interactionsen_AU
dc.identifier.pagination1-4en_AU
dc.identifier.urihttps://doi.org/10.1007/s10751-010-0204-5en_AU
dc.identifier.urihttps://apo.ansto.gov.au/handle/10238/15072en_AU
dc.identifier.volume198en_AU
dc.language.isoenen_AU
dc.publisherSpringer Natureen_AU
dc.subjectFerroelectric materialsen_AU
dc.subjectPhononsen_AU
dc.subjectSpectroscopyen_AU
dc.subjectElectronsen_AU
dc.subjectElectric dipole momentsen_AU
dc.subjectTemperature dependenceen_AU
dc.titlePhonon mode softening at the ferroelectric transition in Eu0.5Ba0.5TiO3en_AU
dc.typeJournal Articleen_AU
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