Tag: Band gap
Modulating unit cells changes topological phases in a photonic Lieb lattice
What the study found The study found that relaxing a specific spatial symmetry of the unit cell in a gyromagnetic photonic crystal can produce a hierarchy of topological phases. These include first-order Chern phases and second-order dipole and quadrupole phases, with both edge states and corner states appearing across different phases. Why the authors say…
Outer-ligament designs increase stiffness and broaden bandgaps
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in EngineeringNovel auxetic metamaterial designs with enhanced outer ligaments achieve 54.57% higher stiffness and broader elastic bandgaps, resolving traditional trade-offs through geometric optimization.
CaCd2P2 stays stable under alkaline water oxidation
CaCd2P2 Zintl phosphide absorbs visible light and resists photocorrosion through light-stabilized surface transformation, enabling stable photoelectrochemical water oxidation for solar fuel.
