@article{Uriadov2025EPR,
  author = {A.V. Uriadov and I.V. Ivanchenko and N.A. Popenko and B.E. Bekirov and E.N. Kalabukhova and V.M. Tkach and D.V. Savchenko},
  title = {EPR evidence of paramagnetic to spin glass transition in Zn1-xMnxSe:Fe2+ single crystals},
  journal = {Semiconductor Physics, Quantum Electronics \& Optoelectronics},
  year = {2025},
  volume = {28},
  number = {3},
  pages = {329--334},
  doi = {10.15407/spqeo28.03.329},
  url = {https://doi.org/10.15407/spqeo28.03.329},
  abstract = {In this work, the paramagnetic-to-spin glass transition in Zn1–xMnxSe:Fe2+ single crystals by using the analysis of temperature-dependent electron paramagnetic resonance (EPR) spectra were investigated. The transition is characterized by the broadening and a decrease in the amplitude of a single Lorentzian resonance line at g ~ 2.01, with critical freezing temperatures Tf at approximately 5.7 K for x = 0.2 and 8.0 K for x = 0.3. At lower temperatures, EPR spectra reveal three distinct paramagnetic centers attributed to Fe3+ ions at g ~ 4.3, strongly interacting Fe ions at g ~ 2.05, and a vacancy-type center at g ~ 2.003. These results indicate that iron doping promotes Mn clustering and stabilizes the spin glass phase, affecting the magnetic properties of Zn1–xMnxSe.},
  keywords = {EPR; iron; zinc manganese selenide; spin glass transition}
}