Effects of room temperature heavy-ion irradiation on magnetic and electrical properties of a single crystalline iron thin film

Yasuhiro Kamada; Hideo Watanabe; Seiji Mitani; Jun Ichi Echigoya; Hiroaki Kikuchi; Satoru Kobayashi; Naoaki Yoshida; Koki Takanashi

doi:10.2320/matertrans.MAW200907

Effects of room temperature heavy-ion irradiation on magnetic and electrical properties of a single crystalline iron thin film

Yasuhiro Kamada, Hideo Watanabe, Seiji Mitani, Jun Ichi Echigoya, Hiroaki Kikuchi, Satoru Kobayashi, Naoaki Yoshida, Koki Takanashi

Division of Nuclear Fusion Dynamics

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

We investigated the magnetic and electrical properties of a heavy-ion irradiated single crystalline iron film. A high quality Fe (001) film on MgO (001) was fabricated using the molecular beam epitaxy technique. The iron film was treated by 3.2 MeV Ni ion irradiation at room temperature using a tandem accelerator. Although the residual electrical resistivity increased by 0.9 x 10^-8 ω after ion irradiation, the M-H curves did not change significantly. These results indicate that the formation of small irradiation defects such as sub-nanometer size vacancy clusters has little influence on magnetocrystalline anisotropy and the magnetization process of iron.

Original language	English
Pages (from-to)	2134-2138
Number of pages	5
Journal	Materials Transactions
Volume	50
Issue number	9
DOIs	https://doi.org/10.2320/matertrans.MAW200907
Publication status	Published - Sept 2009

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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title = "Effects of room temperature heavy-ion irradiation on magnetic and electrical properties of a single crystalline iron thin film",

abstract = "We investigated the magnetic and electrical properties of a heavy-ion irradiated single crystalline iron film. A high quality Fe (001) film on MgO (001) was fabricated using the molecular beam epitaxy technique. The iron film was treated by 3.2 MeV Ni ion irradiation at room temperature using a tandem accelerator. Although the residual electrical resistivity increased by 0.9 x 10-8 ω after ion irradiation, the M-H curves did not change significantly. These results indicate that the formation of small irradiation defects such as sub-nanometer size vacancy clusters has little influence on magnetocrystalline anisotropy and the magnetization process of iron.",

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T1 - Effects of room temperature heavy-ion irradiation on magnetic and electrical properties of a single crystalline iron thin film

AU - Kamada, Yasuhiro

AU - Watanabe, Hideo

AU - Mitani, Seiji

AU - Echigoya, Jun Ichi

AU - Kikuchi, Hiroaki

AU - Kobayashi, Satoru

AU - Yoshida, Naoaki

AU - Takanashi, Koki

PY - 2009/9

Y1 - 2009/9

N2 - We investigated the magnetic and electrical properties of a heavy-ion irradiated single crystalline iron film. A high quality Fe (001) film on MgO (001) was fabricated using the molecular beam epitaxy technique. The iron film was treated by 3.2 MeV Ni ion irradiation at room temperature using a tandem accelerator. Although the residual electrical resistivity increased by 0.9 x 10-8 ω after ion irradiation, the M-H curves did not change significantly. These results indicate that the formation of small irradiation defects such as sub-nanometer size vacancy clusters has little influence on magnetocrystalline anisotropy and the magnetization process of iron.

AB - We investigated the magnetic and electrical properties of a heavy-ion irradiated single crystalline iron film. A high quality Fe (001) film on MgO (001) was fabricated using the molecular beam epitaxy technique. The iron film was treated by 3.2 MeV Ni ion irradiation at room temperature using a tandem accelerator. Although the residual electrical resistivity increased by 0.9 x 10-8 ω after ion irradiation, the M-H curves did not change significantly. These results indicate that the formation of small irradiation defects such as sub-nanometer size vacancy clusters has little influence on magnetocrystalline anisotropy and the magnetization process of iron.

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Effects of room temperature heavy-ion irradiation on magnetic and electrical properties of a single crystalline iron thin film

Abstract

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