found for these modes are in good agreement with theoretically  Ж. Панков. Оптические процессы в полупроводниках predicted ones, the letter being calculated in regard to boundary (М., Мир, 1973).
condition on the surface of nanocrystals that compose the porous  A.I. Belogorokhov, R. Enderlein, A. Tabata, J.R. Leite, layer. A macroscopic continuum model coupling the mechanical V.A. Karavanskii, L.I. Belogorokhova. Phys. Rev. B, 56, 10 vibrational amplitude and electrostatic potential is applied to (1997).
 V.I. Klimov, A.A. Mikhailovsky, Su Xu, A. Malko, J.A. Hol- obtain the frequencies of optical vibrational modes in quantumlingsworth, C.A. Leatherdale, H.-J. Elser, M.G. Bawendl.
dot structures. It has been found that these modes are coupled or Science, 290, 314 (2000).
mixed (LO-TO-modes) as is predicted by the theory. The data  A.P. Mirgorodsky, T. Merle-Me’jean, J.-C. Champarnaud, obtained by using atomic-force microscopy method allowed us to P. Thomas, B. Frit. J. Phys. Chem. Sol., 61, 501 (2000).
estimate average radii of quantum dots constituting the nano-relief of porous PbTe.
Редактор Л.В. Шаронова Физика и техника полупроводников, 2002, том 36, вып.