TiO2 pellets processed via spark plasma sintering and annealing exhibit permittivity of 103 and loss tangent of 0.006 at THz, suitable for all-dielectric metamaterials with negative or near-zero effective index.
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Impact of sintering conditions on the dielectric properties of TiO2 ceramics for metamaterialsapplications at terahertz frequencies
TiO2 pellets processed via spark plasma sintering and annealing exhibit permittivity of 103 and loss tangent of 0.006 at THz, suitable for all-dielectric metamaterials with negative or near-zero effective index.