Study of the cluster formation in low-temperature systems. Spectral manifestation of resonance dipole–dipole interactions between nondipole polyatomic molecules

• Main Authors: Cherevatova, A.N., Bocharov, V.N., Kolomiitsova, T.D., Shchepkin, D.N., Tokhadze, K.G.
• Format: Article
• Language: English
• Published: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2010
• Series: Физика низких температур
• Subjects: Специальный выпуск Nanostructures and Impurity Centers in Cryogenic Environment Guest editors M. Räsänen and E.V. Savchenko
• Online Access: http://dspace.nbuv.gov.ua/handle/123456789/117044

Resonance dipole–dipole interactions are shown to strongly manifest themselves in fundamental and overtone band shapes of low-temperature systems, consisting of polar and nonpolar molecules as well with a relatively large first derivatives (P′ > 0.3 D) of the dipole moment. The rough model on the basis of the interaction between two non-degenerate, doubly degenerate, and triply degenerate oscillators was developed to study pairs of interacting molecules and clusters in low-temperature condensed systems. The concentration dependences of second- and third-order spectral band moments permitted the number of molecules in clusters to be estimated.