The transformation features in cryocondensates of nitrous oxide were studied in the process of thermal
cycling in the vicinity of the temperature T = 40 K. The
research was aimed at figuring out the response of deformation and translational vibrational subsystems of
the condensed nitrous oxide to these transformations. The temperature and the nature of thermally stimulated
reactions in the films of nitrous oxide cryocondensates were determined. By measuring the vibrational spectra of the samples and by recording the changes in amplitude and position of the absorption bands characteristic
of vibrations. Analysis of the IR spectra suggests that the transition from the amorphous state of nitrous oxide to the crystalline one is carried out in several stages, which account for the implementation of relaxation
processes related to a particular type of vibrations of a nitrous oxide molecule. The difference in the temperatures of the transitions is determined by activation energies
that are typical of this type of oscillation.
PACS: 61.50.–f Structure of crystals; PACS: 78.30.–j IR and Raman spectroscopy; PACS: 68.35.Rh Phasen transition and critical phenomena.
