Effect of high-energy ion irradiation on magnetic properties in Fe-Pt invar alloys

F. Ono, A. Kanamitsu, Y. Matsushima, Y. Chimi, N. Ishikawa, T. Kambara, A. Iwase

Research output: Contribution to journalConference article

4 Citations (Scopus)


Measurements of AC-susceptibility versus temperature curves were made in thin plates of both ordered and disordered Fe-28.3at.%Pt invar alloys before and after swift heavy ion irradiation. In disordered Fe-Pt invar alloy the Curie temperature decreased about 15 K by the irradiation of 200 MeV Xe-ions to the fluence of 1014 ions/cm2. In ordered Fe-Pt invar alloy the Curie temperature decreased about 128 K to the value just coincide with that of irradiated disordered alloy. By comparing these data to the previous one for Fe-Ni invar alloys, it was concluded that there exist at least two mechanisms having opposite contribution.

Original languageEnglish
Pages (from-to)166-170
Number of pages5
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Issue number1
Publication statusPublished - Apr 1 2006
EventProceedings of the Sixth International Symposium on Swift Heavy Ions in Matter (SHIM 2005) -
Duration: May 28 2005May 31 2005



  • Fe-Pt invar alloy
  • Ion irradiation
  • Magnetic properties

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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