To efficiently capture the energy of the nuclear bond, advanced nuclear reactor concepts seek solid fuels that must withstand unprecedented temperature and radiation extremes. In …
Crystal defects affect the thermal and heat-transport properties of materials by scattering phonons and modifying phonon spectra,,,,,,–. To appreciate how imperfections in solids …
The efficient extraction of force constants (FCs) is crucial for the analysis of many thermodynamic materials properties. Approaches based on the systematic enumeration of …
Z Cheng, J Liang, K Kawamura, H Zhou… - Nature …, 2022 - nature.com
High thermal conductivity electronic materials are critical components for high-performance electronic and photonic devices as both active functional materials and thermal …
Hexagonal boron nitride (h-BN) has been predicted to exhibit an in-plane thermal conductivity as high as~ 550 W m− 1 K− 1 at room temperature, making it a promising …
Abstract almaBTE is a software package that solves the space-and time-dependent Boltzmann transport equation for phonons, using only ab-initio calculated quantities as …
AJH McGaughey, A Jain, HY Kim, B Fu - Journal of Applied Physics, 2019 - pubs.aip.org
ABSTRACT A computational framework for predicting phonon frequencies, group velocities, scattering rates, and the resulting lattice thermal conductivity is described. The underlying …
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 thermal conductivity (Λ) of wide-band-gap semiconductors GaN and SiC is critical for their application in power devices and optoelectronics. Here, we report time-domain …