(color online) (a)–(d) Phonon dispersion relations with strain of 0.04, 0.08, 0.12, 0.16 at 300 K. (e) Normalized thermal conductivity and stress (κ/κ₀ of h-BN/graphene heterostructure as a function of strain, where the strain along the x direction. The stress distribution is given in insert. Reprinted with the permission from Ref. [156]. Copyright (2017) by IOP Publishing.