Magnetic properties of ion irradiated epitaxial Fe films

Y. Kamada, H. Watanabe, S. Mitani, J. Echigoya, J. N. Mohapatra, H. Kikuchi, S. Kobayashi, K. Takanashi

研究成果: Article査読

5 被引用数 (Scopus)

抄録

Magnetic properties of a heavy-ion irradiated single crystalline iron film were investigated. A high quality Fe (001) film with a thickness of 250 nm was fabricated on MgO (001) using the molecular beam epitaxy technique. The film was irradiated by 3.2 MeV Ni ions at room temperature using a tandem accelerator. Formation of dislocation loops with nanometer size was observed by TEM observation, and that of sub-nanometer size vacancy clusters was confirmed indirectly from a resistivity increase. However, M-H hysteresis curves and magnetic domain structure did not change significantly. These results indicate the formation of irradiation defects of pure iron in nanometer scale range has little influence on the magnetization process of the iron.

本文言語English
論文番号012035
ジャーナルJournal of Physics: Conference Series
266
1
DOI
出版ステータスPublished - 2011

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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