Size effect in the absorption of hypersound in dielectric materials
Gulyaev Yu.V. , Ivanov S.N. , Kozorezov A.G. , Kotelyanskii I.M., Medved' V.V.
The existence of a new phenomenon—dependence of the absorption coefficient of longitudinal hypersonic waves on the transverse dimension of macroscopic (d>lf, d is the plate thickness and lf is the average length of the free path of thermal phonons) dielectric plates—was established.