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Modification of magnetic properties in Fe–Ni alloy thin films induced by energetic ion irradiation

✍ Scribed by Y. Chimi; N. Ishikawa; A. Iwase; F. Ono

Publisher
Elsevier Science
Year
2007
Tongue
English
Weight
234 KB
Volume
257
Category
Article
ISSN
0168-583X

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✦ Synopsis

Ion irradiation effects on magnetic properties in Fe-Ni alloy thin films are studied. The specimens of Fe-Ni alloy thin films ($500 nm in thickness) are irradiated at room temperature with several kinds of ions in the energy and mass ranges of 1.0-200 MeV and 1 H-197 Au. A large increase in T C is observed for comparatively lower energy and lighter ion irradiation. These results suggest that the dominant energy transfer process for the modification of magnetic properties in Fe-Ni alloys is the elastic interaction between incident ions and target atoms. The dependence on ion energy, mass and fluence of the change in T C gives information on a dominant irradiation parameter.

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