Ab initio lattice thermal conductivity of bulk and thin-film $\alpha$-Al${}_2$O${}_3$

Bonny Dongre, Jesús Carrete, Natalio Mingo +1

The thermal conductivities ($\kappa$) of bulk and thin-film $\alpha$-Al${}_2$O${}_3$ are calculated from first principles using both the local density approximation (LDA), and the generalized gr…