{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Xue F"],"funding":["Natural Science Foundation of Zhejiang Province (Zhejiang Provincial Natural Science Foundation)","National Natural Science Foundation of China (National Science Foundation of China)"],"pagination":["2349"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC11890734"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["16(1)"],"pubmed_abstract":["Polar skyrmions are topologically nontrivial polarization textures that demonstrate exotic physical phenomena and novel memory applications. Thus far, these textures have primarily been reported in oxide-ferroelectric-based epitaxial heterostructures because their stabilization requires an elastic energy penalty from the epitaxial strains. Here, without the epitaxial-strain engineering, we discover polar skyrmion bubbles in stand-alone van der Waals ferroelectric CuInP<sub>2</sub>S<sub>6</sub> crystal through the combination of piezoelectric force microscopy, high-resolution transmission electron microscopy, and phase-field simulations. In a thick CuInP<sub>2</sub>S<sub>6</sub> flake of over -100 nm, skyrmion bubbles feature an elliptical hedgehog-like state with center-divergent or center"],"journal":["Nature communications"],"pubmed_title":["Observation of switchable polar skyrmion bubbles down to the atomic layers in van der Waals ferroelectric CuInP&lt;sub&gt;2&lt;/sub&gt;S&lt;sub&gt;6&lt;/sub&gt;."],"pmcid":["PMC11890734"],"funding_grant_id":["62304202","LDT23F04013F04"],"pubmed_authors":["Xue F","Peng Y","Han P","Wang B","Huan C","Ma Y","Wang H","Zhang S","Wang J","Wang N","Zhang C","Wang Z","Zhou H","Sun J","Yuan Y","Tong P","Chen P","Chang K","Tian H","Zheng S","Zhu H","Chen H","Xu H","He Y","Yu B","Zhang X","Gao X","Xu Y"],"additional_accession":[]},"is_claimable":false,"name":"Observation of switchable polar skyrmion bubbles down to the atomic layers in van der Waals ferroelectric CuInP&lt;sub&gt;2&lt;/sub&gt;S&lt;sub&gt;6&lt;/sub&gt;.","description":"Polar skyrmions are topologically nontrivial polarization textures that demonstrate exotic physical phenomena and novel memory applications. Thus far, these textures have primarily been reported in oxide-ferroelectric-based epitaxial heterostructures because their stabilization requires an elastic energy penalty from the epitaxial strains. Here, without the epitaxial-strain engineering, we discover polar skyrmion bubbles in stand-alone van der Waals ferroelectric CuInP<sub>2</sub>S<sub>6</sub> crystal through the combination of piezoelectric force microscopy, high-resolution transmission electron microscopy, and phase-field simulations. In a thick CuInP<sub>2</sub>S<sub>6</sub> flake of over -100 nm, skyrmion bubbles feature an elliptical hedgehog-like state with center-divergent or center","dates":{"release":"2025-01-01T00:00:00Z","publication":"2025 Mar","modification":"2025-04-04T08:22:41.683Z","creation":"2025-04-04T08:22:41.683Z"},"accession":"S-EPMC11890734","cross_references":{"pubmed":["40057534"],"doi":["10.1038/s41467-025-57714-9"]}}