Generation of superparamagnetism in metallic α-iron by swift heavy ion irradiation

E. Kuzmann, S. Stichleutner, Z. Homonnay, K. Havancsák, C. U. Chisholm, M. El-Sharif, V. A. Skuratov, A. Nakanishi, K. Nomura

Research output: Contribution to journalArticle

Abstract

57Fe conversion electron Mössbauer spectroscopy was used to study the effect of swift heavy ion irradiation on electrochemically deposited metallic pure α-iron. We succeeded in preparing superparamagnetic iron by irradiating the electrochemically prepared thin α-iron films using 247 MeV Kr ions with a fluence of 1×1013 ion cm−2 which converted 50% of crystalline α-iron into amorphous and superparamagnetic phases, the latter being >20%. The results are discussed in terms of the thermal spike model for the formation of the amorphous phase which could be essential for the formation of superparamagnetic iron.

Original languageEnglish
Pages (from-to)165-168
Number of pages4
JournalRadiation Physics and Chemistry
Volume127
DOIs
Publication statusPublished - Oct 1 2016

Keywords

  • Amorphous iron
  • Electrodeposition
  • Fe conversion electron Mössbauer spectroscopy
  • Superparamagnetic iron
  • Swift heavy ion irradiation

ASJC Scopus subject areas

  • Radiation

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