Physics of the Solid State
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Mossbauer study of zinc impurity atoms in alkali metal and copper halides
Bordovsky G. A.1, Marchenko A. V.
1,2, Terukov E. I.
3,4, Nasredinov F. S.
5, Seregin P. P.
1,2
1Herzen State Pedagogical University of Russia, Institute of Physics, Scientific Research Institute of Physics, St. Petersburg, Russia
2Herzen State Pedagogical University of Russia, Institute of Physics, St. Petersburg, Russia
3Ioffe Institute, St. Petersburg, Russia
4St. Petersburg State Electrotechnical University “LETI", St. Petersburg, Russia
5Peter the Great Saint-Petersburg Polytechnic University, St. Petersburg, Russia
2Herzen State Pedagogical University of Russia, Institute of Physics, St. Petersburg, Russia
3Ioffe Institute, St. Petersburg, Russia
4St. Petersburg State Electrotechnical University “LETI", St. Petersburg, Russia
5Peter the Great Saint-Petersburg Polytechnic University, St. Petersburg, Russia
Email: al7140@mail.ru, nasfas@mail.ru, ppseregin@mail.ru
The central, relativistic Doppler and isomeric shifts of the emission Mossbauer spectra of 67Cu(67Zn) impurity atoms in the crystal lattices of sodium, potassium, rubidium and monovalent copper halides have been determined. A change in the electronic structure of impurity zinc atoms is demonstrated depending on the chemical nature of the atoms of the immediate environment and their coordination. Based on the comparison of experimental and calculated values of the quadrupole interaction constants for zinc impurity centers in alkali metal halides, it was concluded that the vacancy resulting from the substitution of alkali metal ions by zinc centers is located in the first coordination sphere of the cation sublattice. Keywords: alkali metal and copper halide crystals, impurity zinc atoms, Mossbauer spectroscopy.
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