Strain-induced magnetic phase transition in SrCoO3−δ thin films

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dc.contributor.authorCallori, SJen_AU
dc.contributor.authorHu, Sen_AU
dc.contributor.authorBertinshaw, Jen_AU
dc.contributor.authorYue, ZJen_AU
dc.contributor.authorDanilkin, SAen_AU
dc.contributor.authorWang, XLen_AU
dc.contributor.authorNagarajan, Ven_AU
dc.contributor.authorKlose, Fen_AU
dc.contributor.authorSeidel, Jen_AU
dc.contributor.authorUlrich, Cen_AU
dc.date.accessioned2017-05-15T00:25:12Zen_AU
dc.date.available2017-05-15T00:25:12Zen_AU
dc.date.issued2015-04-10en_AU
dc.date.statistics2017-05-15en_AU
dc.description.abstractIt has been well established that both in bulk at ambient pressure and for films under modest strains, cubic SrCoO3−δ (δ<0.2) is a ferromagnetic metal. Recent theoretical work, however, indicates that a magnetic phase transition to an antiferromagnetic structure could occur under large strain accompanied by a metal-insulator transition. We have observed a strain-induced ferromagnetic-to-antiferromagnetic phase transition in SrCoO3−δ films grown on DyScO3 substrates, which provide a large tensile epitaxial strain, as compared to ferromagnetic films under lower tensile strain on SrTiO3 substrates. Magnetometry results demonstrate the existence of antiferromagnetic spin correlations and neutron diffraction experiments provide a direct evidence for a G-type antiferromagnetic structure with Neél temperatures between TN∼135±10K and ∼325±10K, depending on the oxygen content of the samples. Therefore, our data experimentally confirm the predicted strain-induced magnetic phase transition to an antiferromagnetic state for SrCoO3−δ thin films under large epitaxial strain. © 2015 American Physical Society.en_AU
dc.identifier.articlenumber140405en_AU
dc.identifier.citationCallori, S. J., Hu, S., Bertinshaw, J., Yue, Z. J., Danilkin, S., Wang, X. L., Nagarajan, V., Klose, F., Seidel, J., Ulrich, C. (2015). Strain-induced magnetic phase transition in SrCoO3-delta thin films. Physical Review B, 91(14), 140405. doi:10.1103/PhysRevB.91.140405en_AU
dc.identifier.govdoc8222en_AU
dc.identifier.issn2469-9969en_AU
dc.identifier.issue14en_AU
dc.identifier.journaltitlePhysical Review Ben_AU
dc.identifier.urihttp://dx.doi.org/10.1103/PhysRevB.91.140405en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/8698en_AU
dc.identifier.volume91en_AU
dc.language.isoenen_AU
dc.publisherAmerican Physical Societyen_AU
dc.subjectFerroelectric materialsen_AU
dc.subjectStrainsen_AU
dc.subjectMagnetismen_AU
dc.subjectTemperature controlen_AU
dc.subjectOxygenen_AU
dc.subjectDataen_AU
dc.titleStrain-induced magnetic phase transition in SrCoO3−δ thin filmsen_AU
dc.typeJournal Articleen_AU
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