Induced antiferromagnetism and large magnetoresistances in RuSr2(Nd,Y,Ce)2Cu2O10-d ruthenocuprates

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dc.creatorMclaughlin, A. C.
dc.creatorSher, F.
dc.creatorKimber, S. A. J.
dc.creatorAttfield, J. P.
dc.date2007-11-28
dc.date.accessioned2026-07-07T08:45:57Z
dc.date.available2026-07-07T08:45:57Z
dc.descriptionRuSr2(Nd,Y,Ce)2Cu2O10-d ruthenocuprates have been studied by neutron diffraction, magnetotransport and magnetisation measurements and the electronic phase diagram is reported. Separate Ru and Cu spin ordering transitions are observed, with spontaneous Cu antiferromagnetic order for low hole doping levels p, and a distinct, induced-antiferromagnetic Cu spin phase in the 0.02 < p < 0.06 pseudogap region. This ordering gives rise to large negative magnetoresistances which vary systematically with p in the RuSr2Nd1.8-xY0.2CexCu2O10-d series. A collapse of the magnetoresistance (MR) and magnetisation in the pre-superconducting region may signify the onset of superconducting fluctuations.
dc.description22 pages, 11 figures
dc.identifierhttps://arxiv.org/abs/0711.4609
dc.identifierhttp://arxiv.org/abs/0711.4609
dc.identifierPhysical Review B, 76, 094514 (2007)
dc.identifierdoi:10.1103/PhysRevB.76.094514
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/143129
dc.subjectSuperconductivity
dc.subjectStrongly Correlated Electrons
dc.titleInduced antiferromagnetism and large magnetoresistances in RuSr2(Nd,Y,Ce)2Cu2O10-d ruthenocuprates
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