Results 71 to 80 of about 4,136 (218)

AI optimization of phononic crystal bandgaps

open access: yes, 2023
Phononic crystals are artificial materials comprised of periodic structures that can manipulate propagating mechanical waves. They have potential applications in various fieldssuch as acoustic wave control, thermal management, energy harvesting, and ...

core   +1 more source

Dispersion relations of elastic waves in one-dimensional piezoelectric phononic crystal with mechanically and dielectrically imperfect interfaces

open access: yes, 2016
The effects of mechanically and dielectrically imperfect interfaces on dispersion relations of elastic waves in a one-dimensional piezoelectric phononic crystal are studied in this paper.
魏培君   +3 more
core   +1 more source

Large Anomalous Nernst Effect in Disordered CoPt Thin Films for Planar Thermoelectric Sensing

open access: yesAdvanced Electronic Materials, EarlyView.
Disordered CoPt thin films exhibit a large anomalous Nernst effect with strong dependence on Pt concentration. The transverse thermoelectric response reaches 3.22 µV K−1 near equiatomic composition and an ANE sensitivity of 0.3 µm A−1. The results reveal that composition‐controlled microstructure in sputtered CoPt alloys provides an effective route for
Mojtaba Mohammadi   +2 more
wiley   +1 more source

Study on bandgap vibration isolation of super-cell phononic crystals based on magnetorheological elastomers

open access: yesAIP Advances, 2021
A two-dimensional super-cell phononic crystal semi-active isolator based on magnetorheological elastomers is designed, which can be used for vibration isolation of mechanical devices at medium and high frequencies.
Guo-Jun Yu   +4 more
doaj   +1 more source

Chronic Disease Monitoring Using Advanced Compliant Materials for Bioelectronics

open access: yesAdvanced Electronic Materials, EarlyView.
Compliant bioelectronic systems enable continuous monitoring of chronic disease through soft, stretchable materials and tissue‐conformal designs that support stable electrophysiological, mechanical, and biochemical sensing. Integration of diverse sensing modalities with thoughtful material selection, device architectures, and advanced fabrication ...
Han Kim   +7 more
wiley   +1 more source

A Comprehensive Assessment and Benchmark Study of Large Atomistic Foundation Models for Phonons

open access: yesAdvanced Intelligent Discovery, EarlyView.
We benchmark six large atomistic foundation models on 2429 crystalline materials for phonon transport properties. The rapid development of universal machine learning potentials (uMLPs) has enabled efficient, accurate predictions of diverse material properties across broad chemical spaces.
Md Zaibul Anam   +5 more
wiley   +1 more source

Manipulation of Phonons with Phononic Crystals

open access: yes, 2015
There were three research goals associated with this project. First, was to experimentally demonstrate phonon spectrum control at THz frequencies using Phononic Crystals (PnCs), i.e. demonstrate coherent phonon scattering with PnCs. Second, was to experimentally demonstrate analog PnC circuitry components at GHz frequencies. The final research goal was
openaire   +2 more sources

Time-modulated phononic crystal of oscillating bimetallic rods

open access: yes
Mathematical treatment of space- and time-modulated structures is similar. However, the practical realization of time dependence on elastic properties is a much more difficult problem than the fabrication of a phononic crystal where elastic properties ...
Krokhin, Arkadii   +3 more
core   +1 more source

Hexagonal Boron Nitride Phononic Crystal Waveguides

open access: yes, 2019
Hexagonal boron nitride (h-BN), one of the hallmark van der Waals (vdW) layered crystals with an ensemble of attractive physical properties, is playing increasingly important roles in exploring two-dimensional (2D) electronics, photonics, mechanics, and ...
Xu-Qian Zheng (3033795)   +4 more
core   +1 more source

Phase Noise Reduction in a VHF MEMS-CMOS Oscillator Using Phononic Crystals

open access: yesIEEE Journal of the Electron Devices Society, 2016
This paper presents experimental results showing reduced phase noise in a very high frequency band microelectromechanical systems (MEMS) oscillator. This has been achieved by engineering the embedded MEMS resonator with phononic crystal structures.
Pei Qin   +3 more
doaj   +1 more source

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