Crystals (Aug 2022)

Endotaxial α-Fe Nanoparticles in the High-Fluence Iron-Implanted Single-Crystal MgO

  • Almaz L. Zinnatullin,
  • Bulat F. Gabbasov,
  • Nikolay M. Lyadov,
  • Roman V. Yusupov,
  • Rustam I. Khaibullin,
  • Farit G. Vagizov

DOI
https://doi.org/10.3390/cryst12081095
Journal volume & issue
Vol. 12, no. 8
p. 1095

Abstract

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In this work, we report on the endotaxial growth of α-Fe nanoparticles in the near-surface layer under high-fluence iron ion implantation of the single-crystal magnesium oxide substrate. Comprehensive Mössbauer effect and magnetometry studies show that the implanted sample reveals a pronounced ferromagnetic response even at room temperature, and the α-Fe nanoparticles serve as its main source. The broad band at ~1000 Oe in the X-band magnetic resonance spectra originates from the α-Fe fraction. It manifests the properties of the easy-plane system with the four-fold in-plane anisotropy. The last indicates that the α-Fe nanoparticles are coherently incorporated into the host MgO matrix.

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