Site independent strong phonon-vacancy scattering in high temperature ceramics ZrB${}_2$ and HfB${}_2$

Vrishali Sonar, Rohan Dehankar, K. P. Vijayalakshmi +2

Similar effects of metal and boron vacancies on phonon scattering and lattice thermal conductivity (${\kappa }_l$) of ZrB${}_2$ and HfB${}_2$ are reported. These defects challenge the conventi…