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dc.contributor.author | Iglesias, L. |
dc.contributor.author | Sarantopoulos, Alexandros |
dc.contributor.author | Magén, Cesar |
dc.contributor.author | Rivadulla, Francisco |
dc.date.accessioned | 2018-07-16T07:41:33Z |
dc.date.available | 2018-07-16T07:41:33Z |
dc.date.issued | 2017 |
dc.identifier.citation | Iglesias, 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.issn | 2469-9950 |
dc.identifier.uri | http://hdl.handle.net/10347/17028 |
dc.description.abstract | We 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.sponsorship | This 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.iso | eng |
dc.publisher | APS Physics |
dc.rights | © 2017 American Physical Society |
dc.subject | Conductivity |
dc.subject | Vacancies |
dc.subject | Atomic force microscopy |
dc.subject | Condensed Matter |
dc.subject | Materials Physics |
dc.title | Oxygen vacancies in strained SrTiO 3 thin films: Formation enthalpy and manipulation |
dc.type | journal article |
dc.identifier.doi | 10.1103/PhysRevB.95.165138 |
dc.relation.publisherversion | https://doi.org/10.1103/PhysRevB.95.165138 |
dc.type.hasVersion | VoR |
dc.identifier.essn | 2469-9969 |
dc.rights.accessRights | open access |
dc.contributor.affiliation | Universidade de Santiago de Compostela. Centro de Investigación en Química Biolóxica e Materiais Moleculares |
dc.contributor.affiliation | Universidade de Santiago de Compostela. Departamento de Química Física |
dc.description.peerreviewed | SI |
dc.relation.projectID | info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2016-80762-R/ES |
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