Investigation and Generation of Vacancies in Alpha Quartz by Soft X-Rays |
| A.J. Janavičiusa, R. Purlysb, A. Bulkšasb, S. Balakauskasc, A. Mekysb and V. Šablinskasb
a Faculty of Nature, Šiauliai University, P. Višinskio 19, 76351 Šiauliai, Lithuania b Faculty of Physics, Vilnius University, Saulėtekio 9, 10222 Vilnius, Lithuania c Semiconductor Physics Institute, A. Goštauto 11, 2600 Vilnius, Lithuania |
| Received: September 18, 2008; In final form: October 2, 2009 |
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| In this paper we applied the soft-X-ray radiation for generation of point defects, vacancies, and chemical reactions in quartz (SiO2), taking into account our earlier made similar experiments with crystal silicon and importance of quartz for applications in many fields. In this case only radiative Auger's effects with electrons and electric dipole of atoms transitions can generate metastable vacancies, point defects, and induce chemical reactions. Usually, for point defects generation doses of gamma rays are used. We measured values of the Bragg reflections of X-rays and calculated mean square deviations of atoms in crystal lattice for defining the dynamics of irradiated point defects. We accomplished infrared measurements for establishing of generated chemical reactions, and conductivity measurements were also done. |
| DOI: 10.12693/APhysPolA.116.1076 PACS numbers: 81.40.-z, 78.30.-j, 91.60.Mk |