Results 21 to 30 of about 258,084 (292)

A Thermal Transport Study of Branched Carbon Nanotubes with Cross and T-Junctions

open access: yesApplied Sciences, 2021
This study investigated the thermal transport behaviors of branched carbon nanotubes (CNTs) with cross and T-junctions through non-equilibrium molecular dynamics (NEMD) simulations.
Wei-Jen Chen, I-Ling Chang
doaj   +1 more source

The influence of atoms of second coordination sphere on phonon dispersion of diamond [PDF]

open access: yesОмский научный вестник, 2020
Within the framework of the phenomenological model of twoparticle interaction, the effect of the interaction energy of atoms from the second coordination sphere on the phonon dispersion is considered. This approach makes it possible to vary the growth
V. A. Sachkov
doaj   +1 more source

Ideal topological phononic nodal chain in K2O materials class

open access: yesNew Journal of Physics, 2021
Nodal-chain semimetals are characterized by linked nodal rings in Brillouin zone and they have not been reported in the phonon system of atomic crystals yet. Here, based on first-principles calculations and tight-binding model analysis, we propose nearly
Y S Chen   +4 more
doaj   +1 more source

Dissipative time-dependent quantum transport theory: quantum interference and phonon induced decoherence dynamics [PDF]

open access: yes, 2015
A time-dependent inelastic electron transport theory for strong electron-phonon interaction is established via the equations of motion method combined with the small polaron transformation.
ChiYung Yam   +3 more
core   +2 more sources

Modeling the Impact of Phonon Scattering with Strain Effects on the Electrical Properties of MoS2 Field-Effect Transistors

open access: yesMicromachines, 2023
Molybdenum disulfide (MoS2) has distinctive electronic and mechanical properties which make it a highly prospective material for use as a channel in upcoming nanoelectronic devices.
Huei Chaeng Chin   +3 more
doaj   +1 more source

Hybrid Chlorides with Methylhydrazinium Cation: [CH3NH2NH2]CdCl3 and Jahn-Teller Distorted [CH3NH2NH2]CuCl3

open access: yesMolecules, 2023
The synthesis, structural, phonon, optical, and magnetic properties of two hybrid organic-inorganic chlorides with monoprotonated methylhydrazinium cations (CH3NH2NH2+, MHy+), [CH3NH2NH2]CdCl3 (MHyCdCl3), and [CH3NH2NH2]CuCl3 (MHyCuCl3), are reported. In
Jan A. Zienkiewicz   +4 more
doaj   +1 more source

Hypersonic Phononic Crystals [PDF]

open access: yesPhysical Review Letters, 2005
In this Letter we propose the use of hypersonic phononic crystals to control the emission and propagation of high frequency phonons. We report the fabrication of high quality, single crystalline hypersonic crystals using interference lithography and show that direct measurement of their phononic band structure is possible with Brillouin light ...
Gorishnyy, T.   +4 more
openaire   +3 more sources

Thickness‐Dependent Thermal Conductivity and Phonon Mean Free Path Distribution in Single‐Crystalline Barium Titanate

open access: yesAdvanced Science, 2023
Nanosized perovskite ferroelectrics are widely employed in several electromechanical, photonics, and thermoelectric applications. Scaling of ferroelectric materials entails a severe reduction in the lattice (phonon) thermal conductivity, particularly at ...
Ankit Negi   +9 more
doaj   +1 more source

Temperature dependence of phonon-defect interactions: phonon scattering vs. phonon trapping [PDF]

open access: yesScientific Reports, 2016
AbstractThe interactions between thermal phonons and defects are conventionally described as scattering processes, an idea proposed almost a century ago. In this contribution, ab-initio molecular-dynamics simulations provide atomic-level insight into the nature of these interactions.
M. B. Bebek   +3 more
openaire   +2 more sources

Tunable phonon-driven magnon–magnon entanglement at room temperature

open access: yesNew Journal of Physics, 2023
We report the existence of entangled steady-states in bipartite quantum magnonic systems at elevated temperatures. We consider dissipative dynamics of two magnon modes in a bipartite antiferromagnet, subjected to interaction with a phonon mode and an ...
Yuefei Liu   +9 more
doaj   +1 more source

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