Korea Post

Nanolayer-Confined Strain Waves in Femtosecond-Optical-Vortex-Excited Multiferroic BiFeO3

Abstract Strain waves provide a route to reshape nanoscale order in functional materials, where lattice deformation couples to charge and spin degrees of freedom. Real-space tracking of these transient strain fields is critical for connecting acoustic excitation to functionality,...

Field-Programmable Topological Torons in Chiral Nematic Liquid Crystals

Abstract Torons are three-dimensional double-twist solitons in chiral nematic liquid crystals (LCs), bounded by closed defect loops, that behave as particle-like entities while retaining a fully reconfigurable optical response. Here, it is shown that individual torons can be crea...