Results 21 to 30 of about 1,659 (185)
Coherent thermal transport in nano-phononic crystals: An overview
APL Materials, 2021 Nano-phononic crystals have attracted a great deal of research interest in the field of nanoscale thermal transport due to their unique coherent thermal transport behavior.
Zhongwei Zhang +5 more
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Temperature tuning of defect state induced by the periodic cavities between the phononic crystals
AIP Advances, 2021 The defect state in periodic structures usually leads to a pass band in the forbidden bandgap and energy localization at the position of geometric change.
Huan Liu +5 more
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Tunable Topological Phononic Crystals [PDF]
Physical Review Applied, 2016 Topological insulators, first observed in electronic systems, have inspired many analogues in photonic and phononic crystals in which remarkable one-way propagation edge states are supported by topologically nontrivial bandgaps. Such bandgaps can be achieved by breaking the time-reversal symmetry to lift the degeneracy associated with Dirac cones at ...
Chen, Zeguo, Wu, Ying
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2D phononic-crystal Luneburg lens for all-angle underwater sound localization
Acta Acustica, 2022 Phononic crystals are well known for acoustic wave manipulation which may have potential application in an underwater acoustic detection system. In this work, we design and simulate a two-dimensional Luneburg lens based on gradient-index (GRIN) phononic ...
Ruan Yongdu, Liang Xu
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Controlling thermal conductance using three-dimensional phononic crystals
APL Materials, 2021 Controlling thermal transport at the nanoscale is vital for many applications. Previously, it has been shown that this control can be achieved with periodically nanostructured two-dimensional phononic crystals for the case of suspended devices.
Samuli Heiskanen +2 more
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Electrostatically Induced Phononic Crystal [PDF]
Physical Review Applied, 2019 The possibility of realizing an electrostatically induced phononic crystal is investigated numerically in an acoustic waveguide based on a graphene sheet that is suspended over periodically arrayed electrodes. The application of dc voltage to these electrodes exerts electrostatic force on the graphene and this results in the periodic formation of ...
Hatanaka, Daiki +2 more
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Phononic Crystal Cavity Magnomechanics
Physical Review Applied, 2023 Establishing a way to control magnetic dynamics and elementary excitations (magnons) is crucial to fundamental physics and the search for novel phenomena and functions in magnetic solid-state systems. Electromagnetic waves have been developed as means of driving and sensing in magnonic and spintronics devices used in magnetic spectroscopy, non-volatile
Daiki Hatanaka +3 more
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Phonon dispersions of cluster crystals [PDF]
Journal of Physics: Condensed Matter, 2011 We analyze the ground states and the elementary collective excitations (phonons) of a class of systems, which form cluster crystals in the absence of attractions. Whereas the regime of moderate-to-high-temperatures in the phase diagram has been analyzed in detail by means of density functional considerations (Likos C N, Mladek B M, Gottwald D and Kahl ...
Neuhaus, Tim, Likos, Christos
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Investigation on acoustic energy harvesting based on quarter-wavelength resonator phononic crystals
Advances in Mechanical Engineering, 2018 This article presents the development of an acoustic energy harvester using a quarter-wavelength resonator phononic crystals together with piezoelectric vibrators.
Hui Guo +3 more
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In-Gap Edge and Domain-Wall States in Largely Perturbed Phononic Su–Schrieffer–Heeger Lattices
CrystalsTopological states of matter have attracted significant attention due to their intrinsic wave-guiding and localization capabilities robust against disorders and defects in electronic, photonic, and phononic systems. Despite the above topological features
Amir Rajabpoor Alisepahi, Jihong Ma
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