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Merging Bragg and Local Resonance Bandgaps in Perforated Elastic Metamaterials with Embedded Spiral Holes

Materials ScienceEmbedded Spiral HolesEngineeringPhysicsPerforated Elastic MetamaterialsAcoustic MetamaterialNegative-index MetamaterialApplied PhysicsMetamaterialsLocal Resonance BandgapsDynamic MetamaterialsElectromagnetic MetamaterialsNanophotonics