Investigations into the magnetic and crystal field excitations of the orthorhombically distorted perovskites TbVO3 and CeVO3

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dc.contributor.authorO'Brien, Jen_AU
dc.contributor.authorReynolds, Nen_AU
dc.contributor.authorRovillain, Pen_AU
dc.contributor.authorDanilkin, SAen_AU
dc.contributor.authorSchmalzl, Ken_AU
dc.contributor.authorReehuis, Men_AU
dc.contributor.authorMole, RAen_AU
dc.contributor.authorMiyasaka, Sen_AU
dc.contributor.authorFujioka, Fen_AU
dc.contributor.authorTokura, Yen_AU
dc.contributor.authorKeimer, Ben_AU
dc.contributor.authorMcIntyre, GJen_AU
dc.contributor.authorUlrich, Cen_AU
dc.date.accessioned2022-08-30T00:25:30Zen_AU
dc.date.available2022-08-30T00:25:30Zen_AU
dc.date.issued2018-01-30en_AU
dc.date.statistics2021-10-11en_AU
dc.description.abstractInelastic neutron scattering experiments have been performed on a series of vanadates, in particular TbVO3 and CeVO3, to categorise the crystal field and magnetic excitations. The vanadates possess a configuration with corner sharing, distorted VO6 octahedra (space group Pbnm) with a collinear C-type antiferromagnetic structure occurring below Néel temperatures of TN = 110 K and 124 K respectively. Data from neutron scattering experiments reveal a hitherto unobserved shift of crystal field excitation energy in TbVO3 and CeVO3. Point-charge model calculations have confirmed this shift by theoretically calculating the crystal field excitation spectrum. We propose that the mechanism behind the effect is the onset of local magnetism caused by the ordering of the vanadium sublattice at the magnetic phase transition. This magnetic exchange field from the vanadium ions polarises the spins of the rare-earth ions located at the centre of the unit cell. This results in a Zeeman-like splitting of crystal field energy levels. As a result, crystal field transition energies demonstrate a linear shift as a function of internal magnetic field strength.en_AU
dc.identifier.citationO'Brien, J., Reynolds, N., Rovillain, P., Danilkin, S., Schmalzl, K., Reehuis, M., Mole, R., Miyasaka, S., Fujioka, F., Tokura, Y., Keimer, B., McIntyre, G., & Ulrich, C. (2018). Investigations into the magnetic and crystal field excitations of the orthorhombically distorted perovskites TbVO3 and CeVO3. Poster presented to the 42nd Annual Condensed Matter and Materials Meeting Charles Sturt University, Wagga Wagga, NSW 30th January – 2nd February, 2018. (pp. 72). Retrieved from: https://physics.org.au/wp-content/uploads/cmm/2018/Wagga_2018_Conference_Handbook.pdfen_AU
dc.identifier.conferenceenddate2 February 2018en_AU
dc.identifier.conferencename42nd Annual Condensed Matter and Materials Meetingen_AU
dc.identifier.conferenceplaceWagga Wagga, NSWen_AU
dc.identifier.conferencestartdate30 January 2018en_AU
dc.identifier.pagination72en_AU
dc.identifier.urihttps://physics.org.au/wp-content/uploads/cmm/2018/Wagga_2018_Conference_Handbook.pdfen_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/13664en_AU
dc.language.isoenen_AU
dc.publisherAustralian Institute of Physicsen_AU
dc.subjectBaryonsen_AU
dc.subjectElementary particlesen_AU
dc.subjectElementsen_AU
dc.subjectEnergy-level transitionsen_AU
dc.subjectFermionsen_AU
dc.subjectHardonsen_AU
dc.subjectMetalsen_AU
dc.subjectMineralsen_AU
dc.subjectNucleonsen_AU
dc.subjectScatteringen_AU
dc.subjectTransition elementsen_AU
dc.titleInvestigations into the magnetic and crystal field excitations of the orthorhombically distorted perovskites TbVO3 and CeVO3en_AU
dc.typeConference Posteren_AU
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