Results 21 to 30 of about 106,196 (320)
Metamaterials for Ballistic Electrons [PDF]
, 2007 The paper presents a metamaterial for ballistic electrons, which consists of a quantum barrier formed in a semiconductor with negative effective electron mass.
D. Dragoman, Dragoman M., M. Dragoman
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Research on Low-Frequency Noise Control Based on Fractal Coiled Acoustic Metamaterials
Shock and Vibration, 2022 In this paper, a self-similar fractal coiled acoustic metamaterial is designed for the low-frequency noise control problem by combining a perforated plate and a coiled back cavity structure.
Hongyu Cui, Chengtao Liu, Haoming Hu
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A mathematically defined 3D auxetic metamaterial with tunable mechanical and conduction properties
Materials & Design, 2021 An auxetic metamaterial is a type of mechanical metamaterial that has a negative Poisson's ratio. Most auxetic metamaterials are truss-based or originate from Boolean operations of simple geometries.
Xiaoyang Zheng +2 more
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Development of diverse coding metamaterial structure for radar cross section reduction applications
Scientific Reports, 2022 Despite their widespread use for performing advanced electromagnetic properties, metamaterial suffers from several restrictions in this technological era.
Tayaallen Ramachandran +4 more
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Superconducting metamaterials [PDF]
Applied Physics Letters, 2005 Evanescent wave amplification has been predicted under the ideal condition that the index of refraction, n=−1+i0 precisely, but is difficult to observe in practice because current metamaterials suffer from high losses. We present experimental results on a metamaterial that employs superconducting Nb metals and low-loss dielectric materials.
Michael Ricci +2 more
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Results in Physics, 2019 We report on the tunability of the frequency-dependent permittivity of a metal-ferroelectric-metal (MFM) capacitor fabricated with P(VDF-TrFE), an organic ferroelectric material.
S.-W. Han +4 more
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Viscoelastic Snapping Metamaterials [PDF]
Journal of Applied Mechanics, 2019 Abstract Mechanical metamaterials are artificial composites with tunable advanced mechanical properties. Particularly, interesting types of mechanical metamaterials are flexible metamaterials, which harness internal rotations and instabilities to exhibit programable deformations.
Dykstra, D.M.J. +3 more
openaire +5 more sources
Quantum master equation for coupling mechanism of metamaterial
Results in Physics, 2022 In this paper, we present a full quantum description for coupling mechanism of the metamaterial. We start the derivation from quantum master equation to fit the spectrum of THz metamaterial. Therefore we can employ the quantum master equation to describe
Wei Huang +6 more
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Tunable negative permeability in a three-dimensional superconducting metamaterial [PDF]
, 2015 We report on highly tunable radio frequency (rf) characteristics of a low-loss and compact three dimensional (3D) metamaterial made of superconducting thin film spiral resonators. The rf transmission spectrum of a single element of the metamaterial shows
Anlage, Steven M. +3 more
core +3 more sources