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#moirematerial — Public Fediverse posts

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  1. #Nature #MoireMaterial A 2D ferroelectric vortex pattern in twisted BaTiO3 freestanding layers nature.com/articles/s41586-023 Layered ferroelectric materials make waves — and vortices nature.com/articles/d41586-024 Moiré structures formed in α = 3°, 6°, 10.4° and 50° twisted BTO bilayers. "BTO layers of thickness 15  nm epitaxially grown on (001) SrTiO₃ substrates were delaminated to form twisted bilayer homojunctions with deterministic twist angles. Polarization vortices and antivortices emerges from the lateral strain modulation associated with the twisting."