Simulations of twist-bend nematic droplets with radial anchoring reveal a large catalogue of metastable textures, including twisted hedgehogs, Mexican-hat and pinwheel layers, defect strings, and a narrow parameter window of stable Hopfions.
The layers form a ‘pinwheel structure’, and the integral curves of the director are helices with multiple, less dramatic kinks than those observed atM =
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Geometric Frustration in Twist-Bend Nematic Droplets
Simulations of twist-bend nematic droplets with radial anchoring reveal a large catalogue of metastable textures, including twisted hedgehogs, Mexican-hat and pinwheel layers, defect strings, and a narrow parameter window of stable Hopfions.