Spin-valve effect and magnetoresistivity in single crystalline Ca3Ru2O7

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dc.creatorBao, Wei
dc.creatorMao, Z. Q.
dc.creatorQu, Z.
dc.creatorLynn, J. W.
dc.date2008-02-05
dc.date.accessioned2026-07-07T09:46:47Z
dc.date.available2026-07-07T09:46:47Z
dc.descriptionThe laminar perovskite Ca3Ru2O7 naturally forms ferromagnetic double-layers of alternating moment directions, as in the spin-valve superlattices. The mechanism of huge magnetoresistive effect in the material has been controversial due to a lack of clear understanding of various magnetic phases and phase-transitions. In this neutron diffraction study in a magnetic field, we identify four different magnetic phases in Ca3Ru2O7 and determine all first-order and second-order phase transitions between them. The spin-valve mechanism then readily explains the dominant magnetoresistive effect in Ca3Ru2O7.
dc.description4 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/0802.0713
dc.identifierhttp://arxiv.org/abs/0802.0713
dc.identifierPhys. REv. Lett. 100, 247203 (2008)
dc.identifierdoi:10.1103/PhysRevLett.100.247203
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/163648
dc.subjectStrongly Correlated Electrons
dc.titleSpin-valve effect and magnetoresistivity in single crystalline Ca3Ru2O7
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