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Dimensionality-driven metal-insulator transition in spin-orbit-coupled IrO_2

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dc.contributor.authorArias Egido, E.
dc.contributor.authorLaguna Marco, M. A.
dc.contributor.authorPiquer, C.
dc.contributor.authorJiménez Cabero, P.
dc.contributor.authorLucas, I.
dc.contributor.authorMorellón, L.
dc.contributor.authorGallego Toledo, Fernando
dc.contributor.authorRivera Calzada, Alberto Carlos
dc.contributor.authorCabero Piris, Mariona
dc.contributor.authorSantamaría Sánchez-Barriga, Jacobo
dc.contributor.authorFabbris, G.
dc.contributor.authorHaskel, D.
dc.contributor.authorBoada, R.
dc.contributor.authorDíaz Moreno, S.
dc.date.accessioned2023-06-16T14:16:51Z
dc.date.available2023-06-16T14:16:51Z
dc.date.issued2021-10-21
dc.description© 2021 The Royal Society of Chemistry This work was partially supported by the Spanish MINECO projects MAT2014-54425-R (MINECO/FEDER, UE), MAT2017-82970-C2-R (AEI/FEDER, UE), MAT2017-83468-R (AEI/FEDER, UE), MAT2017-87134-C02-01-R (AEI/FEDER, UE) and MAT2017-87134-C02-02-R (AEI/FEDER, UE), the Spanish MICINN project PID2020-115159GB-I00/AEI/10.13039/501100011033 and by the Aragon Regional Government (Projects No. E12-20R and E28-20R). E. A-E acknowledges the Spanish MINECO and the European Social Fund for an FPI (Formacion de Personal Investigador, 2015) grant. R. B. acknowledges funding support from the European Union's Horizon 2020 research and innovation program under the Marie Sklodowska-Curie grant agreement no. 665919. This research used resources of the APS, a U.S. Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357. We acknowledge Diamond Light Source for time on I20-Scanning under Proposal SP-17266. The research leading to this result has been supported by the project CALIPSOplus under the Grant Agreement 730872 from the EU Framework Programme for Research and Innovation Horizon 2020. The authors acknowledge funding from the project Quantox of QuantERA ERA-NET Cofund of Quantum Technologies (Grant Agreement No. 731473) implemented within the European Union's Horizon 2020 Programme. The authors would like to acknowledge the use of Servicio General de Apoyo a la InvestigacionSAI, Universidad de Zaragoza. The authors would like to acknowledge the use of the diffractometers at the Instituto de Nanociencia de Aragon and C. Munuera for AFM images.
dc.description.abstractA metal-insulator transition is observed in spin-orbit-coupled IrO_2 thin films upon reduction of the film thickness. In the epitaxially grown samples, the critical thickness (t similar to 1.5-2.2 nm) is found to depend on growth orientation (001), (100) or (110). Interestingly from the applied point of view, the insulating behavior is found even in polycrystalline ultrathin films. By analyzing the experimental electrical response with various theoretical models, we find good fits to the Efros-Shklovskii-VRH and the Arrhenius-type behaviors, which suggests an important role of electron correlations in determining the electrical properties of IrO_2. Our magnetic measurements also point to a significant role of magnetic order. Altogether, our results would point to a mixed Slater- and Mott-type of insulator.
dc.description.departmentDepto. de Física de Materiales
dc.description.facultyFac. de Ciencias Físicas
dc.description.refereedTRUE
dc.description.sponsorshipUnión Europea. H2020
dc.description.sponsorshipMinisterio de Economía y Competitividad (MINECO) /FEDER
dc.description.sponsorshipMinisterio de Economía y Competitividad (MINECO)
dc.description.sponsorshipMinisterio de Ciencia e Innovación (MICINN)
dc.description.sponsorshipGobierno de Aragón
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/68470
dc.identifier.doi10.1039/d1nr04207f
dc.identifier.issn2040-3364
dc.identifier.officialurlhttp://dx.doi.org/10.1039/d1nr04207f
dc.identifier.relatedurlhttps://pubs.rsc.org/
dc.identifier.urihttps://hdl.handle.net/20.500.14352/4504
dc.issue.number40
dc.journal.titleNanoscale
dc.language.isoeng
dc.page.final17135
dc.page.initial17125
dc.publisherRoyal Society of Chemistry
dc.relation.projectIDP-SPHERE (665919);CALIPSOplus (730872); Quantox (731473))
dc.relation.projectID(MAT2017-82970-C2-R; MAT2017-83468-R; MAT2017-87134-C02-01-R; MAT2017-87134-C02-02-R)
dc.relation.projectIDMAT2014-54425-R
dc.relation.projectIDPID2020-115159GB-I00/AEI/10.13039/501100011033
dc.relation.projectID(E12-20R; E28-20R)
dc.rightsAtribución-NoComercial 3.0 España
dc.rights.accessRightsopen access
dc.rights.urihttps://creativecommons.org/licenses/by-nc/3.0/es/
dc.subject.cdu538.9
dc.subject.keywordRay circular-dichroism
dc.subject.keywordConductivity
dc.subject.keywordStrain
dc.subject.ucmFísica de materiales
dc.subject.ucmFísica del estado sólido
dc.subject.unesco2211 Física del Estado Sólido
dc.titleDimensionality-driven metal-insulator transition in spin-orbit-coupled IrO_2
dc.typejournal article
dc.volume.number13
dspace.entity.typePublication
relation.isAuthorOfPublication65d45b0a-357f-4ec4-9f97-0ffd3e1cbdcc
relation.isAuthorOfPublicationb8951b68-3e13-4aa5-b31a-6ca2c6ea49d5
relation.isAuthorOfPublication75fafcfc-6c46-44ea-b87a-52152436d1f7
relation.isAuthorOfPublication.latestForDiscovery65d45b0a-357f-4ec4-9f97-0ffd3e1cbdcc

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