Ji Zhou

TL;DR: In this paper, the authors review the recent progress of Mie resonance-based metamaterials by providing a description of the underlying mechanisms to realize negative permeability, negative permittivity and double negative media.

TL;DR: In this article, a clear classification of mechanical metamaterials have been established based on the fundamental material mechanics, which can be divided into strong-lightweight (E/ρ), pattern transformation with tunable stiffness, negative compressibility (−4G/3), and strong light-weight (S/ρ).

TL;DR: This design provides an effective and feasible way to construct broad band absorber in stealth technology, as well as the enhanced transmittance devices.

TL;DR: In this paper, an electrically tunable negative permeability metamaterial consisting of a periodic array of split ring resonators infiltrated with nematic liquid crystals is demonstrated, which can be continuously and reversibly adjusted by an applied electric field, and the maximum shift is about 210MHz with respect to the resonance frequency around 11.08GHz.

TL;DR: A nitrate-citrate gel was prepared from metal nitrates and citric acid by sol-gel process, in order to synthesize Ni 0.25 Cu 0.50 Fe 2 O 4 ferrite as discussed by the authors.