Magnetic ordering in superconducting sandwiches

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dc.contributor.authorChan, Aen_AU
dc.contributor.authorvan der Heijden, NJen_AU
dc.contributor.authorCauser, GLen_AU
dc.contributor.authorSöhnel, Ten_AU
dc.contributor.authorSimpson, MCen_AU
dc.contributor.authorRule, KCen_AU
dc.contributor.authorLee, WTHen_AU
dc.contributor.authorBernhard, Cen_AU
dc.contributor.authorMallett, BPPen_AU
dc.date.accessioned2024-01-10T22:09:54Zen_AU
dc.date.available2024-01-10T22:09:54Zen_AU
dc.date.issued2021-11-24en_AU
dc.date.statistics2023-04-24en_AU
dc.description.abstractOur cuprate-manganite ‘superconducting sandwich’ multilayers exhibit a highly unusual magnetic-field induced insulating-to-superconducting transition (IST), contrary to the commonly held understanding that magnetic fields are detrimental to superconductivity [1, 2]. This new behaviour is a result of the specific magnetic and electronic properties of the manganite coupling with the high-Tc cuprate (YBa2Cu3O7-δ, YBCO). Due to the specific manganite composition, Nd0.65(Ca0.7Sr0.3)0.35MnO3 (NCSMO), we hypothesize the behaviour to originate from CE-type antiferromagnetic ordering as well as charge and orbital ordering [3]. The magnetic data presented here will focus on polarized neutron reflectometry (PNR) and elastic neutron scattering on a YBCO-NCSMO trilayer and superlattice. The model that best described the PNR data for the trilayer had antiparallel moments at the YBCO-NCSMO interfaces. In the superlattice, the direction of moments at NCSMO interfaces were found to alternate with film depth whose long-ranged ordering was broken below 35 K in a 1 T applied field. The stability of the AFM order in the superlattice was further supported by a robustness of magnetic in-plane half-order elastic scattering peaks at 9 T. This evidences the interplay of magnetism and superconductivity that play a role in realizing the IST effect in our superconducting sandwiches. © The Authorsen_AU
dc.identifier.citationChan, A., van der Heijden, N., Causer, G., Sohnel, T., Simpson, M. C., Rule, K., Lee, W.-T., Bernhard, C. & Mallett, B. (2020). Magnetic ordering in superconducting sandwiches. Presentation to the ANSTO User Meeting, 24-26 November 2021, Online. Retrieved from: https://events01.synchrotron.org.au/event/146/contributions/4339/en_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/4339/en_AU
dc.identifier.urihttps://apo.ansto.gov.au/handle/10238/15302en_AU
dc.language.isoenen_AU
dc.publisherAustralian Nuclear Science and Technology Organisationen_AU
dc.subjectChalcogenidesen_AU
dc.subjectCoherent scatteringen_AU
dc.subjectCopper compoundsen_AU
dc.subjectDiffractionen_AU
dc.subjectMagnetismen_AU
dc.subjectManganese compoundsen_AU
dc.subjectOxidesen_AU
dc.subjectOxygen compoundsen_AU
dc.subjectPhase transformationsen_AU
dc.subjectPhysical propertiesen_AU
dc.subjectScatteringen_AU
dc.subjectTransition element compoundsen_AU
dc.titleMagnetic ordering in superconducting sandwichesen_AU
dc.typeConference Presentationen_AU
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