Materials with ultrahigh or low thermal conductivity are desirable for many technological
applications, such as thermal management of electronic and photonic devices, heat …

The description of phonon heat conduction has typically been based on Fourier diffusion
theory. However, over the past three decades, a host of interesting phonon transport …

Nanomaterials possess superior optical, electrical, magnetic, mechanical, and thermal
properties, which have made them suitable for a multitude of applications. The present …

Ambient energy harvesting has great potential to contribute to sustainable development and
address growing environmental challenges. Converting waste energy from energy-intensive …

The coupling of lattice dynamics and phonon transport methodologies with density
functional theory has become a powerful tool for calculating lattice thermal conductivity (κ) …

The widespread use of nanostructures and nanomaterials has opened up a whole new
realm of challenges in thermal management, but also leads to possibilities for energy …

In the present work, we used machine learning (ML) techniques to build a crystal-based
model that can predict the lattice thermal conductivity (LTC) of crystalline materials. To …

Thermal conductivity in dielectric crystals is the result of the relaxation of lattice vibrations
described by the phonon Boltzmann transport equation. Remarkably, an exact microscopic …

In the hydrodynamic regime, phonons drift with a nonzero collective velocity under a
temperature gradient, reminiscent of viscous gas and fluid flow. The study of hydrodynamic …

Heat conduction in semiconductors and dielectrics depends upon their phonon mean free
paths that describe the average travelling distance between two consecutive phonon …