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Broadband EPR Spectroscopy of the Ground Electron State of the Fe4+ Impurity Ion in Amethyst

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Abstract

Fine structure of ground electron state of Fe4+ impurity ion in a natural amethyst crystal was studied by broadband electron paramagnetic resonance spectroscopy in the frequency range of 34–500 GHz. It is established that energy levels scheme consists of ground quasi-doublet Sz = ± 2, quasi-doublet S z= ± 1 and singlet Sz=0 with zero-field energies ± 4.9 GHz, 435.2 ± 45.4 GHz and 584 GHz, respectively. Parameters of effective spin Hamiltonian describing dependences of electron spin levels on magnetic field are determined.

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Acknowledgements

The authors are grateful to V.A. Shustov for the X-ray diffraction study of the samples and to Distributed Spectral-Analytical Center of Shared Facilities for Study of Structure, Composition and Properties of Substances and Materials of FRC Kazan Scientific Center of RAS for providing necessary facilities to carry out the experimental measurements. The work was performed with the financial support from the government assignment for FRC Kazan Scientific Center of RAS.

Funding

The work was performed with the financial support from the government assignment for FRC Kazan Scientific Center of RAS. ID 122011800133–2.

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Authors and Affiliations

  1. Zavoisky Physical-Technical Institute, FRC Kazan Scientific Center, Russian Academy of Sciences, Kazan, 420029, Russia

    V. F. Tarasov & R. B. Zaripov

  2. Kazan (Volga Region) Federal University, Kremlevskaya St., 18, Kazan, 420008, Russia

    V. D. Scherbakov

Authors
  1. V. F. Tarasov
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  2. R. B. Zaripov
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  3. V. D. Scherbakov
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Contributions

VDS made substantial contributions to the conception of the work carried out EPR measurements in submillimeter band and wrote drafts of the manuscript. RBZ carried out EPR measurements in Q-band. All authors reviewed and edited the manuscript.

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Correspondence to V. F. Tarasov.

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Tarasov, V.F., Zaripov, R.B. & Scherbakov, V.D. Broadband EPR Spectroscopy of the Ground Electron State of the Fe4+ Impurity Ion in Amethyst. Appl Magn Reson 54, 679–686 (2023). https://doi.org/10.1007/s00723-023-01545-8

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  • DOI: https://doi.org/10.1007/s00723-023-01545-8

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