Three-Dimensional Acoustic Double-Zero-Index Medium with a Fourfold Degenerate Dirac-like Point.
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DOI: 10.1103/physrevlett.124.074501
Abstract: We report the first realization of a three-dimensional (3D) acoustic double-zero-index medium (DZIM) made of a cubic lattice of metal rods. While the past decade has seen several realizations of 2D DZIM, achieving such a… read more here.
Keywords: double zero; medium; zero index; acoustic double ... See more keywords