Dynamics of thermoluminescence spectra of impurity-helium condensates containing stabilized nitrogen and oxygen atoms Academic Article uri icon

abstract

  • The results of investigations of thermoluminescence dynamics during destruction of neon-helium and krypton-helium condensates containing stabilized nitrogen and oxygen atoms are presented. Spectra of the thermoluminescence of a krypton-helium condensate contained bands of N and O atoms and NO molecules. The intensities of the bands in these spectra were found to increase simultaneously during destruction processes in the temperature range 1.5-15 K. The observation of NO molecules provides clear evidence for chemical reactions in the nanoclusters comprising the sample at low temperatures. Destruction of neon-helium samples occurred in two stages. During the first stage the -group of N atoms surrounded by Ne and N2 molecules dominated the spectra. During the second stage, the spectra contained intense bands of N and O atoms stabilized in a molecular nitrogen matrix. The unusual characteristics of the thermoluminescence spectra were observed, and their changes were explained in terms of the shell structure of impurity nanoclusters, which comprised the impurity-helium condensates. 2012 American Institute of Physics.

published proceedings

  • LOW TEMPERATURE PHYSICS

author list (cited authors)

  • Khmelenko, V. V., Lee, D. M., Krushinskaya, I. N., Boltnev, R. E., Bykhalo, I. B., & Pelmenev, A. A.

complete list of authors

  • Khmelenko, VV||Lee, DM||Krushinskaya, IN||Boltnev, RE||Bykhalo, IB||Pelmenev, AA

publication date

  • January 1, 2012 11:11 AM