{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"volume":["8(1)"],"submitter":["Das S"],"pubmed_abstract":["Oxygen vacancies, especially their distribution, are directly coupled to the electromagnetic properties of oxides and related emergent functionalities that have implications for device applications. Here using a homoepitaxial strontium titanate thin film, we demonstrate a controlled manipulation of the oxygen vacancy distribution using the mechanical force from a scanning probe microscope tip. By combining Kelvin probe force microscopy imaging and phase-field simulations, we show that oxygen vacancies can move under a stress-gradient-induced depolarisation field. When tailored, this nanoscale flexoelectric effect enables a controlled spatial modulation. In motion, the scanning probe tip thereby deterministically reconfigures the spatial distribution of vacancies. The ability to locally man"],"journal":["Nature communications"],"pagination":["615"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC5607007"],"repository":["biostudies-literature"],"pubmed_title":["Controlled manipulation of oxygen vacancies using nanoscale flexoelectricity."],"pmcid":["PMC5607007"],"pubmed_authors":["Jae Shin Y","Rae Cho M","Das S","Wang B","Cao Y","Noh TW","Mo Yang S","Chen LQ","Kalinin SV","Kim M","Wang L"],"additional_accession":[]},"is_claimable":false,"name":"Controlled manipulation of oxygen vacancies using nanoscale flexoelectricity.","description":"Oxygen vacancies, especially their distribution, are directly coupled to the electromagnetic properties of oxides and related emergent functionalities that have implications for device applications. Here using a homoepitaxial strontium titanate thin film, we demonstrate a controlled manipulation of the oxygen vacancy distribution using the mechanical force from a scanning probe microscope tip. By combining Kelvin probe force microscopy imaging and phase-field simulations, we show that oxygen vacancies can move under a stress-gradient-induced depolarisation field. When tailored, this nanoscale flexoelectric effect enables a controlled spatial modulation. In motion, the scanning probe tip thereby deterministically reconfigures the spatial distribution of vacancies. The ability to locally man","dates":{"release":"2017-01-01T00:00:00Z","publication":"2017 Sep","modification":"2025-04-18T19:35:58.773Z","creation":"2019-03-27T02:56:56Z"},"accession":"S-EPMC5607007","cross_references":{"pubmed":["28931810"],"doi":["10.1038/s41467-017-00710-5"]}}