Phonon transport
Monte Carlo phonon transport simulations in hierarchically disordered silicon nanostructures
... thermal transport in hierarchically nanostructured ...Boltzmann transport equation using the Monte Carlo ...the phonon transport direction, which introduce significant thermal ...
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Computational Modeling of Geometry Dependent Phonon Transport in Silicon Nanostructures
... that phonon transport has been investigated in similar geometries by previous researchers with alternative computational ...on phonon transmission and conductance through the constricted nanowire is ...
205
Exploring Thermal Phonon Transport from Atomic to Macroscopic Scales for Energy Conversion and Management
... measure phonon MFPs ex- ists such as photoacoustic wave propagation,(16) inelastic neutron scattering,(17) heat pulse techniques(18, 19) but they have some limitation such as a restriction on the sample type, ...
173
Phonon transport effects in one dimensional width modulated graphene nanoribbons
... the phonon spectrum and the Landauer formalism for phonon ...the phonon spectrum of the width-modulated channels acquires less dispersive bands with lower group velocities and several narrow ...
34
Suppression of Phonon Transport in Molecular Christmas Trees
... the phonon thermal conductance of self-assembled molecular films, whilst preserving their electrical properties, is highly desirable, both for thermal management at the nanoscale and for the design of ...
8
A Statistical phonon transport model for thermal transport in cyrstalline materials from the diffuse to ballistic regime
... to phonon-phonon scatter- ing, the use of isotropic dispersion, and the inherent issues associated with stochastic methods that involve pseudo-random number generation, the MC technique has been shown to be ...
149
Control of Phonon Transport by Phononic Crystals and Application to Thermoelectric Materials
... ballistic transport of phonons without describing their behavior as a diffusion ...non transport, as well as characteristic phonon transport due to scattering caused by the structure, has been ...
7
Phonon transport simulations in low dimensional disordered graphene nanoribbons
... channel transport behavior by the dependence of the conductance on the channel ...diffusive transport, whereas exponents around and above β=3 indicate ...the transport regime of operation. ...
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Low dimensional phonon transport effects in ultranarrow disordered graphene nanoribbons
... the phonon dispersions and phonon localization in graphene nanoribbons using DFT calculations [88, 89, 90, 91], with mainly similar ...for transport properties, we treat roughness atomistically, ...
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Theory of electron, phonon and spin transport in nanoscale quantum devices
... and phonon interference to engineer electron and phonon transport through nanoscale junctions for wide range of applications such as molecular switches, sensors, piezoelectricity, thermoelectricity ...
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Thermal Properties and Nanoelectromechanical System Based on Carbon Nanotubes
... of phonon transport in carbon nanotubes are also ...micron-scale phonon mean free path at temperatures approaching 900K, and we demonstrate the first evidence for ballistic phonon propagation ...
142
Predicting the Phonon Dispersion in Different Carbon Nanotubes using Tight Binding Method
... the phonon dispersion relation and show that the second nearest neighboring atoms vibrate with the different amplitude, direction and phase from those for the nearest neighboring ...
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Effect of Anomalous Crystal Structure of Iron Aluminides Fe2Al5 and Fe4Al13: Low Phonon Thermal Conductivity and Potentiality as Thermoelectric Materials
... low phonon ther- mal conductivity may suggest partially occupied sites scatter- ing not only phonon but electron suppress phonon and elec- tron relaxation ...the phonon thermal conductivity of ...
5
Effect of Platinum Addition to Coinage Metals on Their Ultrasonic Properties172-179
... to phonon-phonon interaction and due to thermoelastic relaxation mechanisms have been eval- uated in bimetallic alloys of the coinage metals (cop- per, silver or gold) with 1, 2, 3 or 4 at% ...is ...
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Acousto optical nanoscopy of buried photonic nanostructures
... about 90 ps, as shown in Fig. 1(b) by the solid line. The derivative of the displacement is associated with the strain ηt and is shown in Fig. 1(b) by the dashed line. The presence of the acoustic pulse slightly perturbs ...
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IJEDR1702302 International Journal of Engineering Development and Research (
... optical phonon, which lead to coupled surface Plasmon–phonon– polariton modes, the polar semiconductor medium act as a band pass filter and as a high pass filter for incident EM ...
6
Electron Phonon Mechanism of ømega Phase Transformation
... have extended the Landau model of Cook (Refs. 13 and 14) for the ! PT by including a spatial gradient (Ginzburg) term of the scalar order parameter and studied the several types of domain walls by solving the equation ...
5
Lattice Dynamics of the Rhenium and Technetium Dichalcogenides
... due to their deviation from hexagonal symmetry towards a distorted 1T structure with space group P¯ 1 in which the metal atoms group into parallelograms of four atoms [6–8]. They thus offer the unusual possibility of ...
6
Vibronic enhancement of excitation energy transport : interplay between local and non local exciton phonon interaction
... We found that simulation of field-driven excitation does not significantly alter the pop- ulation dynamics in terms of the behavior of population transfer efficiency as a function of local and non-local ...
27
Phonon Spectroscopy at Atomic Resolution
... the phonon-loss sector is of importance in physics and materials science since this will allow detailed studies of bonding arrangements, thermal and optical transport, as well as the detection of hydrogen ...
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