Crystal field theory and excitation spectra in Fe2Mo3O8
Eremin M. V.1, Vasin K. V.1, Nurmukhametov A. R.1
1Institute of Physics, Kazan Federal University, Kazan, Russia

The parameters of even and odd crystal fields acting on iron ions in tetrahedral and octahedral positions of the Fe2Mo3O8 crystal are calculated. The obtained energy level schemes of the lowest multiplets are discussed in the context of the available experimental data. By comparing the calculated intensities of magnetic and electric dipole transitions with experimental data, the parameters of the effective Hamiltonian of the interaction of 3d electrons with an electric field are refined. It is found that the main absorption lines at T < TN in the region of terahertz frequencies are due to excitations of iron ions and are not associated with collective oscillations of magnetic moments. The splitting of absorption lines upon application of an external magnetic field is a consequence of the difference in the orientations of the magnetic sublattices relative to the crystallographic axes. Keywords: Fe2Mo3O8, multiferroics, crystal field, electric dipole transitions. DOI: 10.61011/EOS.2023.04.56354.66-22
  1. F. Varret, H. Czeskleba, F. Hartmann-Boutron, P. Imbert. J. Phys. France., 33, 549 (1972). DOI: 10.1051/jphys:01972003305-6054900
  2. T. Kurumaji, S. Ishiwata, Y. Tokura. Phys. Rev., 5, 031034 (2015). DOI: 10.1103/PhysRevX.5.031034
  3. Yazhong Wang, Gheorghe L. Pascut, Bin Gao, Trevor A. Tyson, Kristjan Haule, Valery Kiryukhin, Sang-Wook Cheong. Sci. Rep., 5, 12268 (2015). DOI: 10.1038/srep12268
  4. T. Kurumaji, Y. Takahashi, J. Fujioka, R. Masuda, H. Shishikura, S. Ishiwata, Y. Tokura. Phys. Rev. B, 95, 020405(R) (2017). DOI: 10.1103/PhysRevB.95.020405
  5. B. Csizi, S. Reschke, A. Strinic, L. Prodan, V. Tsurkan, I. Kezsmarki, J. Deisenhofer. Phys. Rev. B, 102, 174407 (2020). DOI: 10.1103/PhysRevB.102.174407
  6. T.N. Stanislavchuk, G.L. Pascut, A.P. Litvinchuk, Z. Liu, Sungkyun Choi, M.J. Gutmann, B. Gao, K. Haule, V. Kiryukhin, S.-W. Cheong, A.A. Sirenko. Phys. Rev. B, 102, 115139 (2020). DOI: 10.1103/PhysRevB.102.115139
  7. S. Reschke, A.A. Tsirlin, N. Khan, L. Prodan, V. Tsurkan, I. Kezsmarki, J. Deisenhofer. Phys. Rev. B, 102, 094307 (2020). DOI: 10.1103/PhysRevB.102.094307
  8. A. Abragam, B. Bleaney. Electron Paramagnetic Resonance of Transition Ions (Oxford University Press, Oxford, 2012)
  9. B.Z. Malkin. Modern Problems in Condensed Matter Sciences, ed. by Kaplyanskii A.A., Macfarlane R.M. (Elsevier, Amsterdam, 1987), v. 21, chap. 2, p. 13-50
  10. M.V. Eremin, A.A. Kornienko. Phys. Stat. Sol. B, 79, 775 (1977)
  11. W.H. Kleiner. J. Chem. Phys., 20, 1784 (1952)
  12. V.V. Iglamov, M.V. Eremin. Phys. Solid State, 49, 229-235 (2007)
  13. K.V. Vasin, M.V. Eremin. J. Phys.: Condens. Matter, 33, 225501 (2021). DOI: 10.1088/1361-648X/abe730
  14. M. Synek, A.E. Rainis, E.A. Peterson. J. Chem. Phys., 46, 2039 (1967). DOI:
  15. E. Clementi, A.D. McLean. Phys. Rev., 133, A419 (1964). DOI: 10.1103/PhysRev.133.A419
  16. I.V. Solovyev, S.V. Streltsov. Phys. Rev. Materials, 3, 114402 (2019). DOI: 10.1103/PhysRevMaterials.3.114402
  17. S.V. Streltsov, D.-J. Huang, I.V. Solovyev, D.I. Khomskii. JETP Lett., 109, 786-789 (2019). DOI: 10.1134/S0021364019120026
  18. Y.M. Sheu, Y.M. Chang, C.P. Chang, Y.H. Li, K.R. Babu, G.Y. Guo, T. Kurumaji, Y. Tokura. Phys. Rev. X, 9, 031038 (2019). DOI: 10.1103/PhysRevX.9.031038
  19. M.V. Eremin. JETP, 129 (6), 1084-1092 (2019). DOI: 10.1134/S1063776119110037
  20. M.V. Eremin. Phys. Rev. B, 100, 140404(R) (2019). DOI: 10.1103/PhysRevB.100.140404
  21. K.V. Vasin, M.V. Eremin, A.R. Nurmukhametov. Pisma v ZhETF, 115 (7), 420-423 (2022) (in Russian). DOI: 10.31857/S1234567822070035 [K.V. Vasin, M.V. Eremin, A.R. Nurmukhametov. JETP Letters, 115 (7), 380-383 (2022). DOI: 10.1134/S0021364022100307]

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