Local transport property on ferromagnetic tunnel junction measured using conducting atomic force microscope

Yasuo Ando; Hiroshi Kameda; Hitoshi Kubota; Terunobu Miyazaki

Local transport property on ferromagnetic tunnel junction measured using conducting atomic force microscope

Yasuo Ando, Hiroshi Kameda, Hitoshi Kubota, Terunobu Miyazaki

工学研究科・応用物理学専攻

研究成果: Article › 査読

20 被引用数 (Scopus)

抄録

The local topographical and electrical properties were measured simultaneously for a Ni₈₀Fe₂₀/Co/Al-oxide junction. Images with a lateral resolution of 1 nm and a current sensitivity of 3 pA were successfully obtained; no strong correlation between them was observed. From the results of local current-voltage characteristics also measured, it was clarified that the contrast of the current image indicated the distribution of barrier heights. The histogram of current density calculated by taking into consideration a Gaussian distribution corresponded qualitatively to the experimental result.

本文言語	English
ジャーナル	Japanese Journal of Applied Physics, Part 2: Letters
巻	38
号	7 A
出版ステータス	Published - 1999 1 1

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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引用スタイル

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abstract = "The local topographical and electrical properties were measured simultaneously for a Ni80Fe20/Co/Al-oxide junction. Images with a lateral resolution of 1 nm and a current sensitivity of 3 pA were successfully obtained; no strong correlation between them was observed. From the results of local current-voltage characteristics also measured, it was clarified that the contrast of the current image indicated the distribution of barrier heights. The histogram of current density calculated by taking into consideration a Gaussian distribution corresponded qualitatively to the experimental result.",

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AU - Kubota, Hitoshi

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N2 - The local topographical and electrical properties were measured simultaneously for a Ni80Fe20/Co/Al-oxide junction. Images with a lateral resolution of 1 nm and a current sensitivity of 3 pA were successfully obtained; no strong correlation between them was observed. From the results of local current-voltage characteristics also measured, it was clarified that the contrast of the current image indicated the distribution of barrier heights. The histogram of current density calculated by taking into consideration a Gaussian distribution corresponded qualitatively to the experimental result.

AB - The local topographical and electrical properties were measured simultaneously for a Ni80Fe20/Co/Al-oxide junction. Images with a lateral resolution of 1 nm and a current sensitivity of 3 pA were successfully obtained; no strong correlation between them was observed. From the results of local current-voltage characteristics also measured, it was clarified that the contrast of the current image indicated the distribution of barrier heights. The histogram of current density calculated by taking into consideration a Gaussian distribution corresponded qualitatively to the experimental result.

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