Electron paramagnetic resonance [Cu3+–Cu2+](C2v) impurity dimers in BaF2:Cu ionic crystal

Cover Page

Cite item

Full Text

Open Access Open Access
Restricted Access Access granted
Restricted Access Subscription Access

Abstract

Impurity dimers [Cu3+–Cu2+] (С2v) with an antiferromagnetic bond between copper ions have been synthesized in BaF2 crystals. The study of the molecular structure of the synthesized dimers was carried out by the electron paramagnetic resonance at frequencies of 9.3 and 34.2 GHz in the temperature range from 5 to 150 K. It was shown that the 63Cu3+ and 63Cu2+ ions replaced the neighboring cations of the Ва2+ lattice, forming a dimer with a parallel bond axis of one of the 〈110〉 crystallographic axes. It has been found that the coupling between copper ions has an antiferromagnetic exchange interaction and that its repeated inverse state is a doublet, S = 1/2. There were determined parameters of Zeeman interaction, part of the parameters of the hyperfine and quadrupole interaction of 63Cu3+ and 63Cu2+ ions, as well as part of the parameters of the ligand hyperfine interaction with two equivalent F ions.

About the authors

R. B. Zaripov

Zavoisky Physical-Technical Institute, Federal Research Center “Kazan Scientific Center of the Russian Academy of Sciences”

Author for correspondence.
Email: rb.zaripov@knc.ru
Russia, 420029, Kazan

V. A. Ulanov

Zavoisky Physical-Technical Institute, Federal Research Center “Kazan Scientific Center of the Russian Academy of Sciences”; Kazan State Power Engineering University

Author for correspondence.
Email: rb.zaripov@knc.ru
Russia, 420029, Kazan; Russia, 420066, Kazan

R. I. Kalimullin

Kazan State Power Engineering University

Email: rb.zaripov@knc.ru
Russia, 420066, Kazan

References

  1. Bersuker I.B. Electronic structure and properties of transition metal compounds. Introduction to the theory. N.Y.: Wiley, 1996.
  2. Ulanov V.A., Krupski M., Hoffmann S.K., Zaripov M.M. // J. Phys. Cond. Matter. 2003. V. 15. No. 3. P. 1081.
  3. Hoffmann S.K., Goslar J., Lijewski S., Ulanov V.A. // J. Chem. Phys. 2007. V. 127. Art. No.124705.
  4. Уланов В.А., Зарипов М.М., Фазлижанов И.И. // ФТТ. 2005. Т. 47. № 9. С. 1596; Ulanov V.A., Zaripov M.M., Fazlizhanov I.I. // Phys. Solid. State. 2005. V. 47. No. 9. P. 1655.
  5. Dorenbos P. Mechanism of ionic transport in rare earth doped alkaline earth fluorides. Druk: Krips Repro Meppel, 1988.
  6. Mabbs F.E., Collison D. Electron paramagnetic resonance of d transition metal compounds. Elsevier Science Publishers, 1992.
  7. Абрагам А., Блини Б. Электронный парамагнитный резонанс переходных ионов. Т. 1. М.: Мир, 1972.
  8. Anderson P.W. // Phys. Rev. 1950. V. 79. P. 350.
  9. Anderson P.W. // Phys. Rev. 1959. V. 115. P. 2.
  10. Ашуров М.Х., Нуритдинов И., Бойбобоева С.Т. // Опт. и спектроск. 2023. Т. 131. № 3. С. 341; Ashurov M.K., Nuritdinov I., Boiboboeva S.T. // Opt. Spectrosc. 2023. V. 131. No. 3. P. 318.

Supplementary files

Supplementary Files
Action
1. JATS XML
2.

Download (429KB)
3.

Download (92KB)
4.

Download (162KB)
5.

Download (79KB)
6.

Download (99KB)

Copyright (c) 2023 Р.Б. Зарипов, В.А. Уланов, Р.И. Калимуллин