46954 20210121114509.0 doi 10.1038/nnano.2015.108 sideral 89954 ART-2015-89954 eng Becher, Carsten Strain-induced coupling of electrical polarization and structural defects in SrMnO3 films 2015 Access copy available to the general public Unrestricted Local perturbations in complex oxides, such as domain walls, strain and defects, are of interest because they can modify the conduction or the dielectric and magnetic response, and can even promote phase transitions. Here, we show that the interaction between different types of local perturbations in oxide thin films is an additional source of functionality. Taking SrMnO 3 as a model system, we use nonlinear optics to verify the theoretical prediction that strain induces a polar phase, and apply density functional theory to show that strain simultaneously increases the concentration of oxygen vacancies. These vacancies couple to the polar domain walls, where they establish an electrostatic barrier to electron migration. The result is a state with locally structured room-temperature conductivity consisting of conducting nanosized polar domains encased by insulating domain boundaries, which we resolve using scanning probe microscopy. Our 'nanocapacitor' domains can be individually charged, suggesting stable capacitance nanobits with a potential for information storage technology. info:eu-repo/grantAgreement/ES/DGA/E26-304043 info:eu-repo/grantAgreement/ES/MINECO/MAT2011-27553-C02 info:eu-repo/grantAgreement/ES/MINECO/MAT2012-38213-C02-01 info:eu-repo/grantAgreement/ES/MINECO/MAT2014-51982-C2 info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 35.267 2015 NANOSCIENCE & NANOTECHNOLOGY 1 / 83 = 0.012 2015 Q1 T1 MATERIALS SCIENCE, MULTIDISCIPLINARY 2 / 271 = 0.007 2015 Q1 T1 18.842 2015 Atomic and Molecular Physics, and Optics 2015 Q1 Bioengineering 2015 Q1 Biomedical Engineering 2015 Q1 Nanoscience and Nanotechnology 2015 Q1 Electrical and Electronic Engineering 2015 Q1 Materials Science (miscellaneous) 2015 Q1 Condensed Matter Physics 2015 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/submittedVersion (orcid)0000-0002-6487-1505 Maurel, Laura Universidad de Zaragoza Aschauer, Ulrich Lilienblum, Martin (orcid)0000-0002-6761-6171 Magén, César Universidad de Zaragoza Meier, Dennis (orcid)0000-0002-6944-4713 Langenberg, Eric Trassin, Morgan Blasco, Javier Krug, Ingo P. Algarabel, Pedro A. Spaldin, Nicola A. Pardo, José A. Fiebig, Manfred 2003 395 Universidad de Zaragoza Dpto. Física Materia Condensa. Área Física Materia Condensada 10, 8 (2015), 661-666 Nat. Nanotechnol. Nature Nanotechnology 1748-3387 1158763 http://zaguan.unizar.es/record/46954/files/texto_completo.pdf Preprint 66632 http://zaguan.unizar.es/record/46954/files/texto_completo.jpg?subformat=icon icon Preprint oai:zaguan.unizar.es:46954 articulos driver 2021-01-21-10:55:57 ARTICLE