418 citations · 1k across the 15 of their papers we have counts for
20 papers
Tunable phononic transparency and opacity with isotopic defects
Zhun-Yong Ong
In an isotopically disordered harmonic chain, phonon transmission attenuates exponentially with distance because of multiple scattering by the isotopic defects. We propose a simple…
Exact scattering cross section for lattice-defect scattering of phonons using the atomistic Green's function method
Zhun-Yong Ong
The use of structurally complex lattice defects, such as functional groups, embedded nanoparticles, and nanopillars, to generate phonon scattering is a popular approach in phonon e…
Effect of boundary roughness on the attenuation of specular phonon reflection in graphene
Zhun-Yong Ong
The reduced phonon specularity from boundary roughness scattering plays a major role in the lower thermal conductivity in semiconducting and insulating nanowires and films. Alt…
Control of wave scattering for robust coherent transmission in a disordered medium
Zhun-Yong Ong
The spatial structure of the inhomogeneity in a disordered medium determines how waves scatter and propagate in it. We present a theoretical model of how the Fourier components of…
The Atomistic Green's Function method for acoustic and elastic wave-scattering problems
Hossein Khodavirdi, Zhun-Yong Ong, Ankit Srivastava
In this paper, we present a powerful method (Atomistic Green's Function, AGF) for calculating the effective Hamiltonian of acoustic and elastic wave-scatterers. The ability to calc…
The role of flexural coupling in heat dissipation from a two-dimensional layered material to its hexagonal boron nitride substrate
Zhun-Yong Ong, Gang Zhang, Yong-Wei Zhang
Understanding the limits of phononic heat dissipation from a two-dimensional layered material (2DLM) to its hexagonal boron nitride (h-BN) substrate and how it varies with the stru…