http://dspace.nbuv.gov.ua:80/handle/123456789/128478 2026-04-06T15:11:43Z 2026-04-06T15:11:43Z Feulner, P. Savchenko, E. http://dspace.nbuv.gov.ua:80/handle/123456789/128998 2018-01-15T01:03:26Z 2003-01-01T00:00:00Z

Electronically induced phenomena: low temperature aspects Feulner, P.; Savchenko, E.

2003-01-01T00:00:00Z Savchenko, E.V. Ogurtsov, A.N. Zimmerer, G. http://dspace.nbuv.gov.ua:80/handle/123456789/128823 2018-01-15T01:03:59Z 2003-01-01T00:00:00Z

Exciton-induced lattice defect formation Savchenko, E.V.; Ogurtsov, A.N.; Zimmerer, G. The lattice defect formation in solid Ne induced by electronic excitation was studied using the selective vacuum ultraviolet spectroscopy method. The samples were excited with synchrotron radiation in the range of excitonic absorption n = 2Г(3/2). The dose dependence of the intensity distribution in the band of atomic type self-trapped exciton luminescence was analyzed. A direct evidence of the formation and accumulation of point lattice defects in solid Ne via the excitonic mechanism was obtained for the first time. The model of the permanent lattice defect formation is discussed.

2003-01-01T00:00:00Z Wiethoff, P. Kassühlke, B. Menzel, D. Feulner, P. http://dspace.nbuv.gov.ua:80/handle/123456789/128822 2018-01-15T01:03:53Z 2003-01-01T00:00:00Z

Biexcitons in solid neon Wiethoff, P.; Kassühlke, B.; Menzel, D.; Feulner, P. We study the creation of biexcitons in neon films on a metal substrate by one-photon processes. We demonstrate that photon stimulated desorption of ions is a perfect tool for the investigation of these excitation processes which possess very low cross sections. We show that the principle of the equivalent core approximation which is well know from inner shell experiments can also be applied to the neon biexciton case. Comparing the equivalent core molecules Ne₂** and Na₂ we find that neon biexcitons can be well described in a Frenkel picture.

2003-01-01T00:00:00Z Arakawa, I. Adachi, T. Hirayama, T. Sakurai, M. http://dspace.nbuv.gov.ua:80/handle/123456789/128821 2018-01-15T01:03:59Z 2003-01-01T00:00:00Z

Absolute yields of the exciton induced desorption at the surface of solid rare gases Arakawa, I.; Adachi, T.; Hirayama, T.; Sakurai, M. Absolute yields of the photo-induced desorption at the surface of solid rare gases were studied in the excitonic excitation region. Both metastable and total desorption yields depend strongly on excitation energy and film thickness of rare gas solids. The absolute desorption yields and their dependence on film thickness were quantitatively reproduced by a simulation based on the diffusion of excitons in the bulk and the kinetic energy release by a cavity ejection mechanism and an excimer dissociation one followed by internal sputtering.

2003-01-01T00:00:00Z