Magnon-mediated magnetoresistance in layered manganites

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dc.contributor.authorHernando Grande, Antonio
dc.contributor.authorCortés Gil, Raquel
dc.contributor.authorGonzález Merchante, Daniel
dc.contributor.authorHernando González, María
dc.contributor.authorAlonso Rodríguez, José María
dc.contributor.authorGarcía García Tuñón, Miguel Ángel
dc.contributor.authorMartínez, José L.
dc.contributor.authorRuiz Gonález, María Luisa
dc.contributor.authorGonzález Calbet, José María
dc.date.accessioned2023-06-17T13:19:31Z
dc.date.available2023-06-17T13:19:31Z
dc.date.issued2019-01-03
dc.description©2019 American Physical Society This work was supported by the Spanish Ministry of Innovation, Science, and Technology and the Spanish Ministry of Economy and Competitiveness through Research Projects No. CSD2009-00013, No. TSI-020100-2011-280, No. MAT2011-23068, No. MAT2012-37109-C02-01, No. MAT2014-54372-R, and No. MAT2017-86450-C04-R.
dc.description.abstractWe describe here a type of magnetoresistance that takes place in naturally layered and outstanding ordered single phase manganites that may be mediated by magnon excitation. In particular, we show the effect for the Ruddlesden-Popper compound, LaSr2Mn2O7 synthesized by ceramic method. This material exhibits, besides the conventional colossal magnetoresistance, another type of magnetoresistance at low temperature, associated with breaking of the A-type antiferromagnetic coupling of Mn-containing planes. Excitation of magnons or application of a magnetic field breaks this antiparallel alignment so that some electrons, initially confined on the planes, become itinerant along the interplain directions through a double exchange mechanism, giving rise to resistance variations of the order of similar to 60% for polycrystalline samples. The effect described here might be present in other types of manganites exhibiting a natural layered structure, opening up the possibility of developing magnetoresistive devices based on antiferromagnetic oxide materials without requiring artificial multilayered structures.
dc.description.departmentDepto. de Física de Materiales
dc.description.facultyFac. de Ciencias Físicas
dc.description.refereedTRUE
dc.description.sponsorshipMinisterio de Economia y Competitividad (MINECO)
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/51133
dc.identifier.doi10.1103/PhysRevB.99.024403
dc.identifier.issn2469-9950
dc.identifier.officialurlhttp://dx.doi.org/10.1103/PhysRevB.99.024403
dc.identifier.relatedurlhttps://journals.aps.org
dc.identifier.urihttps://hdl.handle.net/20.500.14352/13075
dc.issue.number2
dc.journal.titlePhysical review B
dc.language.isoeng
dc.publisherAmerican Physical Society
dc.relation.projectIDCSD2009-00013
dc.relation.projectIDTSI-020100-2011-280
dc.relation.projectIDMAT2011-23068
dc.relation.projectIDMAT2012-37109-C02-01
dc.relation.projectIDMAT2014-54372-R
dc.relation.projectIDMAT2017-86450-C04-R
dc.rights.accessRightsopen access
dc.subject.cdu538.9
dc.subject.keywordInterplane tunneling magnetoresistance
dc.subject.keywordGiant magnetoresistance
dc.subject.keywordManganese oxides
dc.subject.keywordSpin
dc.subject.keywordAntiferromagnetism
dc.subject.keywordMagnetotransport
dc.subject.keywordBehavior
dc.subject.keywordCharge
dc.subject.ucmFísica de materiales
dc.subject.ucmFísica del estado sólido
dc.subject.unesco2211 Física del Estado Sólido
dc.titleMagnon-mediated magnetoresistance in layered manganites
dc.typejournal article
dc.volume.number99
dspace.entity.typePublication
relation.isAuthorOfPublication930014e1-7363-41d3-b971-b824e05f84b2
relation.isAuthorOfPublication45ea84a6-76ce-4e10-96df-0dbc4b8771ef
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relation.isAuthorOfPublication46a55ceb-7c67-4916-acc8-f9b9c7a5bd38
relation.isAuthorOfPublication.latestForDiscovery930014e1-7363-41d3-b971-b824e05f84b2
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