The Role of the Crystal Plane Irradiated by Swift Heavy Ions in the Formation of Defects in MgAl2O4 Crystals
Akilbekov A. Kiryakov A. Podshivalov A. Ospanova Z. Aralbayeva G. Popov A.I. Baimukhanov Z. Junisbekova D. Dauletbekova A.
December 2025Multidisciplinary Digital Publishing Institute (MDPI)
Crystals
2025#15Issue 12
Model experiments were performed on the interaction of swift heavy 220 MeV Xe ions with MgAl2O4 spinel crystal with (100), (110), and (111) planes. A computational analysis of the energy parameters of Xe ions in MgAl2O4 single crystal was performed, and an estimate of the ion range in the near-surface layer (14 μm) was provided. Optical absorption spectrum was analyzed using polarized light and EPR spectroscopy of initial and irradiated crystals. It has been established that at a fluence of 1013 cm−2 in a sample with an orientation plane (110), 35% more optically active F-type centers are formed. It has been shown that optically active centers V|Al–O− are observed in an unusual, polarized beam.
electron paramagnetic resonance , F-type defects , MgAl2O4 single crystal , optical absorption spectra , swift heavy ions , V,Al–O− centers
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Institute of Physical and Technical Sciences, L.N. Gumilyov Eurasian National University, Satpayev Str. 2, Astana, 010008, Kazakhstan
Institute of Solid State Chemistry of the Ural Branch of Russian Academy of Sciences, Pervomaiskaya Str. 91, Ekaterinburg, 620990, Russian Federation
Institute of Physics and Technology of Ural Federal University, Mira Str. 19, Ekaterinburg, 620002, Russian Federation
Institute of Solid-State Physics, University of Latvia, Kengaraga 8, Riga, LV-1063, Latvia
Latvian Academy of Sciences, Akademijas laukums 1, Riga, LV-1050, Latvia
Institute of Physical and Technical Sciences
Institute of Solid State Chemistry of the Ural Branch of Russian Academy of Sciences
Institute of Physics and Technology of Ural Federal University
Institute of Solid-State Physics
Latvian Academy of Sciences
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