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How do defects limit the ultrahigh thermal conductivity of BAs? A first principles study
Mauro Fava, Nakib Haider Protik, Chunhua Li +6
The promise enabled by BAs high thermal conductivity in power electronics cannot be assessed without taking into account the reduction incurred when doping the material. Using firs…
Exposing the hidden influence of selection rules on phonon-phonon scattering by pressure and temperature tuning
Navaneetha K. Ravichandran, David Broido
Using ab initio calculations, we show that the hidden influence of selection rules on three-phonon scattering can be exposed through anomalous signatures in the pressure () and…
Phonon-Phonon Interactions in Strongly Bonded Solids: Selection Rules and Higher-Order Processes
Navaneetha K. Ravichandran, David Broido
We show that the commonly used lowest-order theory of phonon-phonon interactions frequently fails to accurately describe the anharmonic phonon decay rates and thermal conductivity…