mriselMagnetic Resonance in SolidsMagnetic Resonance in Solids2072-5981Kazan Federal Universitymrisel-89Research ArticleСтатьиEPR of the V4+ ion in single crystals of pyrovanadates β-Mg2V2O7, α-Zn2V2O7: Spin-Hamiltonian parametersMisraS. K.

1455 de Maisonneuve Blvd West, Montreal, Quebec, H3G 1M8

AndronenkoS. I.

Kremlevskaya 18, Kazan 420008

Sergey.Andronenko@gmail.comConcordia UniversityCanadaKazan Federal UniversityRussian Federation20183003201820118101 (8 pp.)Copyright © Misra S.K., Andronenko S.I., 20242024Misra S.K., Andronenko S.I.Misra S.K., Andronenko S.I.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.mrsej.ru/jour/article/view/89

The angular variation of V4+ electron paramagnetic resonance (EPR) line positions were recorded in single crystals of β-Mg2V2O7 and α-Zn2V2O7 at 120 K and 295 K in three mutually perpendicular planes in the temperature range from 120 to 295 K and at some intermediate temperatures. Least-squares fitting was used by diagonalization of the Spin-Hamiltonian (SH) matrix to determine the SH parameters and the orientations of the principal axes of the g- and A-matrices from the angular variations of the EPR line positions. Although the V4+ SH parameters were found to be similar in the two crystals, the orientations of the principal axes of the g- and A-matrices were not found to be coincident in the two crystals.

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The authors declare that there are no conflicts of interest present.