Matches in SemOpenAlex for { <https://semopenalex.org/work/W4384197626> ?p ?o ?g. }
- W4384197626 abstract "In ferroelectrics, complex interactions among various degrees of freedom enable the condensation of topologically protected polarization textures. Known as ferroelectric solitons, these particle-like structures represent a new class of materials with promise for beyond CMOS technologies due to their ultrafine size and sensitivity to external stimuli. Such polarization textures have scarcely been reported in multiferroics. Here, we report a range of soliton topologies in bismuth ferrite strontium titanate superlattices. High-resolution piezoresponse force microscopy and Cs-corrected high-angle annular dark-field scanning transmission electron microscopy reveal a zoo of topologies, and polarization displacement mapping of planar specimens reveals center-convergent and divergent topological defects as small as 3 nm. Phase field simulations verify that some of these topologies can be classed as bimerons, with a topological charge of plus and minus one, and first-principles-based effective Hamiltonian computations show that the co-existence of such structures can lead to non-integer topological charges, a first observation in a BiFeO3-based system. Our results open new opportunities in multiferroic topotronics." @default.
- W4384197626 created "2023-07-14" @default.
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- W4384197626 date "2023-07-13" @default.
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- W4384197626 title "Ferroelectric solitons crafted in epitaxial bismuth ferrite superlattices" @default.
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- W4384197626 doi "https://doi.org/10.1038/s41467-023-39841-3" @default.
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