Mössbauer Studies of the Structure of Core/Shell Fe3O4/γ-Fe2O3 Nanoparticles

A. S. Kamzin*, I. M. Obaidat, A. A. Valliulin, V. G. Semenov, I. A. Al-Omari, C. Nayek

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


Abstract: The phase composition, the structure of cores and shells, and the dependences of the shell thickness on the fabrication technique were determined by Mössbauer spectroscopy for core/shell Fe3O4/γ-Fe2O3 magnetic nanoparticles (MNPs) with Fe3O4 cores of a fixed size (8 nm) and γ-Fe2O3 shells of a varying thickness (1, 3, or 5 nm). A layer on the MNP surface with a magnetic state differing from that in the bulk was found. It was also found that a spin-glass state probably exists between the core and the shell. The studied core/shell Fe3O4/γ-Fe2O3 MNPs have promising applications in various fields (e.g., biomedicine).

Original languageEnglish
Pages (from-to)426-429
Number of pages4
JournalTechnical Physics Letters
Issue number5
Publication statusPublished - May 1 2019

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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