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dc.contributor.authorIglesias, L.
dc.contributor.authorSarantopoulos, Alexandros
dc.contributor.authorMagén, Cesar
dc.contributor.authorRivadulla, Francisco
dc.date.accessioned2018-07-16T07:41:33Z
dc.date.available2018-07-16T07:41:33Z
dc.date.issued2017
dc.identifier.citationIglesias, L., Sarantopoulos, A., Magén, C., & Rivadulla, F. (2017). Oxygen vacancies in strained SrTiO3 thin films: Formation enthalpy and manipulation. Physical Review B, 95(16). doi: 10.1103/physrevb.95.165138
dc.identifier.issn2469-9950
dc.identifier.urihttp://hdl.handle.net/10347/17028
dc.description.abstractWe report the enthalpy of oxygen vacancy formation in thin films of electron-doped SrTiO 3 , under different degrees of epitaxial stress. We demonstrate that both compressive and tensile strain decrease this energy at a very similar rate and promote the formation of stable doubly ionized oxygen vacancies. Moreover, we also show that unintentional cationic vacancies introduced under typical growth conditions, produce a characteristic rotation pattern of TiO6 octahedra. The local concentration of oxygen vacancies can be modulated by an electric field with an AFM tip, changing not only the local electrical potential but also producing a nonvolatile mechanical response whose sign (up/down) can be reversed by the electric field
dc.description.sponsorshipThis work was supported the Ministerio de Economía y Competitividad of Spain (Project No. MAT2016-80762-R), and Xunta de Galicia (Centro singular de investigación de Galicia accreditation 2016-2019) and the European Union (European Regional Development Fund - ERDF). L.I. also acknowledges the Ministerio de Economía y Competitividad of Spain for an FPI grant
dc.language.isoeng
dc.publisherAPS Physics
dc.rights© 2017 American Physical Society
dc.subjectConductivity
dc.subjectVacancies
dc.subjectAtomic force microscopy
dc.subjectCondensed Matter
dc.subjectMaterials Physics
dc.titleOxygen vacancies in strained SrTiO 3 thin films: Formation enthalpy and manipulation
dc.typejournal article
dc.identifier.doi10.1103/PhysRevB.95.165138
dc.relation.publisherversionhttps://doi.org/10.1103/PhysRevB.95.165138
dc.type.hasVersionVoR
dc.identifier.essn2469-9969
dc.rights.accessRightsopen access
dc.contributor.affiliationUniversidade de Santiago de Compostela. Centro de Investigación en Química Biolóxica e Materiais Moleculares
dc.contributor.affiliationUniversidade de Santiago de Compostela. Departamento de Química Física
dc.description.peerreviewedSI
dc.relation.projectIDinfo:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2016-80762-R/ES


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