Results 31 to 40 of about 991,692 (161)
Tunable guided waves in a soft phononic crystal with a line defect
APL Materials, 2021 Defects in phononic crystals may induce localized states and therefore can serve as microcavities, waveguides, or perfect mirrors. In this article, we numerically and experimentally investigate the deformation behavior and wave propagation ...
Yueting Wang +5 more
doaj +1 more source
Simulation of film bulk acoustic resonator based on two-dimensional phononic crystals
物联网学报, 2022 A new structure of film bulk acoustic resonator (FBAR) based on phononic crystal (PnC) was proposed.The phononic crystal was used as the acoustic reflection layer at the bottom of the bulk acoustic wave resonator, which has the characteristics of high ...
Linhao SHI +5 more
doaj +2 more sources
Numerical Analysis of Viscous Dissipation in Microchannel Sensor Based on Phononic Crystal
Micromachines, 2021 Phononic crystals with phononic band gaps varying in different parameters represent a promising structure for sensing. Equipping microchannel sensors with phononic crystals has also become a great area of interest in research.
Juxing He +5 more
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AIP Advances, 2021 The propagation of surface acoustic waves in two types of tunable magneto-electro-elastic phononic crystal structures is investigated, for which Terfenol-D rods are vertically deposited on the piezoelectric substrate or embedded in the piezoelectric ...
Jianying Hu +4 more
doaj +1 more source
Phononic glass: A robust acoustic-absorption material [PDF]
, 2012 In order to achieve strong wide band acoustic absorption under high hydrostatic pressure, an interpenetrating network structure is introduced into the locally resonant phononic crystal to fabricate a type of phononic composite material called " ...
Chinese Acad Sci, Inst Mech, Key Lab Micrograv Sci, Beijing 100190, Peoples R China. +5 more
core +1 more source
Phonon propagation dynamics in band-engineered one-dimensional phononic crystal waveguides
New Journal of Physics, 2015 The phonon propagation dynamics in a phononic crystal waveguide, realized via a suspended one-dimensional membrane array with periodic air holes, is investigated as function of its geometry.
Daiki Hatanaka +4 more
doaj +1 more source
Millifluidic Synthesis of Core–Shell Resonators For Tunable Sonic BandGaps in Acoustic Metamaterials
Advanced Materials Interfaces, EarlyView.Millimeter‐scale core–shell acoustic resonators are fabricated by a gravity‐assisted dripping approach and incorporated into epoxy composites at controlled volume fractions. The resulting alumina–core resonator composites show tunable low‐frequency acoustic attenuation, demonstrating a scalable route for integrating locally resonant metamaterial units ...
Colton Steiner +5 more
wiley +1 more source
Crystals, 2019 In this paper, the wave propagation in phononic crystal composed of auxetic star-shaped honeycomb matrix with negative Poisson’s ratio is presented.
Shu-Yeh Chang +3 more
doaj +1 more source
Advanced Science, EarlyView.First‐principles calculations reveal that monolayer In2O${\rm In}_2{\rm O}$ hosts type‐II Dirac fermions near the Fermi level, which split into Weyl points under spin‐orbit coupling. The material exhibits negative and giant magnetoresistance, a pronounced spin Hall effect, and phonon‐mediated superconductivity at 1.5 K, establishing it as a unique ...
Qing‐Bo Liu +6 more
wiley +1 more source
Applied Sciences, 2022 In this study, a new type of 2D piezoelectric phononic crystal with a square hollow and convex structures is designed and established. A theoretical study of the piezoelectric phononic crystal is presented in this article to investigate the transmission ...
Zhongjian Miao +3 more
doaj +1 more source