Abstract
Relaxation processes in oxygen-containing Ar cryocrystals pre-irradiated by low-energy electrons are studied with the focus on the role of the diffusion-controlled atom-atom recombination reaction of oxygen in the relaxation cascades. The results of real-time-correlated measurements of thermally stimulated phenomena are presented. The experiments have been performed using activation spectroscopy methods—thermally stimulated exoelectron emission and spectrally resolved thermally stimulated luminescence. Solid evidence for the radiative mechanism of electron detrapping triggering the relaxation cascades is obtained.
Highlights
Oxygen, one of the most abundant elements in the universe, has properties that are in many respects unique and has attracted considerable interest of scientists over many years
We present the results of “correlated activation spectroscopy” studies of relaxation processes in pre-irradiated Ar solids doped with oxygen
The clearly seen structure of formed experiments with synchronous measurements of thermally stimulated chemiluminescence of O2* stemming from the diffusion-controlled atom-atom recombination reaction the curves agrees reasonably well with the previously measured yield of TSL detected in the M band6,7 and the yield of TSEE,5 with the only difference that the curves in Fig. 1 show more distinct features
Summary
B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine, 47 Lenin Ave., Kharkov 61103, Ukraine. Institut für Physikalische und Theoretische Chemie, TU München, Lichtenbergstr, 4, Garching 85747, Germany. Institut für Physikalische und Theoretische Chemie, TU München, Lichtenbergstr, 4, Garching 85747, Germany; University of California, Irvine 92697, USASubmitted September 13, 2006͒ Fiz. Nizk.
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