Defect-related luminescence of MgO single crystals irradiated with swift 132Xe ions
Assylbayev R. Akilbekov A. Baubekova G. Chernenko K. Zdorovetz M. Feldbach E. Shablonin E. Lushchik A.
May 2022Elsevier B.V.
Optical Materials
2022#127
Low-temperature cathodo- and photoluminescence connected with the F and F+ centers (oxygen vacancies in different charge states) and bivacancies have been investigated in MgO single crystals preliminarily irradiated by 230-MeV 132Xe ions with varying fluence (up to 1014 ions/cm2). The cathodoluminesence bands (result of decomposition into Gaussians) related to the F, F+ and P centers have intensified with Xe-irradiation fluence up to Φ = 1013 ions/cm2, while drastic emission attenuation in a whole spectral region occurs at higher fluences. The limitations of the use of luminescence methods for the detection of structural point defects induced by heavy irradiation have been considered.
61.80.Jh , 61.82.Ms , 76.30.Mi , 78.55.-m , 78.60.Hk , Cathodo- and photoluminescence , Magnesium oxide , PACS , Structural defects , Swift heavy ion irradiation
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Pavlodar Pedagogical University, Toraigyrov Str. 58, Pavlodar, 140000, Kazakhstan
L.N. Gumilyov Eurasian National University, Munaitpasov Str. 13, Nur-Sultan, 010008, Kazakhstan
MAX IV Laboratory, Lund University, P.O. Box 118, Lund, 22100, Sweden
Institute of Nuclear Physics, Ibragimov Str. 1, Almaty, 050032, Kazakhstan
Institute of Physics, University of Tartu, W. Ostwald Str. 1, Tartu, 50411, Estonia
Pavlodar Pedagogical University
L.N. Gumilyov Eurasian National University
MAX IV Laboratory
Institute of Nuclear Physics
Institute of Physics
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