Tunneling spectroscopy of magnetic tunnel junctions: Comparison between CoFeB/MgO/CoFeB and CoFeB/Al-O/CoFeB

M. Mizuguchi; Y. Hamada; R. Matsumoto; S. Nishioka; H. Maehara; K. Tsunekawa; D. D. Djayaprawira; N. Watanabe; T. Nagahama; A. Fukushima; H. Kubota; S. Yuasa; M. Shiraishi; Y. Suzuki

doi:10.1063/1.2171961

Tunneling spectroscopy of magnetic tunnel junctions: Comparison between CoFeB/MgO/CoFeB and CoFeB/Al-O/CoFeB

M. Mizuguchi, Y. Hamada, R. Matsumoto, S. Nishioka, H. Maehara, K. Tsunekawa, D. D. Djayaprawira, N. Watanabe, T. Nagahama, A. Fukushima, H. Kubota, S. Yuasa, M. Shiraishi, Y. Suzuki

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

8 Citations (Scopus)

Abstract

Tunneling spectroscopy measurements of magnetic tunneling junctions including two different barrier layers were performed. Intense dips at bias voltages of ±0.3 V were observed in second derivative conductance spectra only for a magnetic tunneling junction with a MgO barrier. It was concluded that the electronic structure of the MgO barrier has significant influence on the tunneling process of electrons through magnetic tunnel junctions.

Original language	English
Article number	08T309
Journal	Journal of Applied Physics
Volume	99
Issue number	8
DOIs	https://doi.org/10.1063/1.2171961
Publication status	Published - 2006 May 25
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1063/1.2171961

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Mizuguchi, M., Hamada, Y., Matsumoto, R., Nishioka, S., Maehara, H., Tsunekawa, K., Djayaprawira, D. D., Watanabe, N., Nagahama, T., Fukushima, A., Kubota, H., Yuasa, S., Shiraishi, M., & Suzuki, Y. (2006). Tunneling spectroscopy of magnetic tunnel junctions: Comparison between CoFeB/MgO/CoFeB and CoFeB/Al-O/CoFeB. Journal of Applied Physics, 99(8), [08T309]. https://doi.org/10.1063/1.2171961

Tunneling spectroscopy of magnetic tunnel junctions : Comparison between CoFeB/MgO/CoFeB and CoFeB/Al-O/CoFeB. / Mizuguchi, M.; Hamada, Y.; Matsumoto, R.; Nishioka, S.; Maehara, H.; Tsunekawa, K.; Djayaprawira, D. D.; Watanabe, N.; Nagahama, T.; Fukushima, A.; Kubota, H.; Yuasa, S.; Shiraishi, M.; Suzuki, Y.

In: Journal of Applied Physics, Vol. 99, No. 8, 08T309, 25.05.2006.

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

Mizuguchi, M, Hamada, Y, Matsumoto, R, Nishioka, S, Maehara, H, Tsunekawa, K, Djayaprawira, DD, Watanabe, N, Nagahama, T, Fukushima, A, Kubota, H, Yuasa, S, Shiraishi, M & Suzuki, Y 2006, 'Tunneling spectroscopy of magnetic tunnel junctions: Comparison between CoFeB/MgO/CoFeB and CoFeB/Al-O/CoFeB', Journal of Applied Physics, vol. 99, no. 8, 08T309. https://doi.org/10.1063/1.2171961

Mizuguchi, M. ; Hamada, Y. ; Matsumoto, R. ; Nishioka, S. ; Maehara, H. ; Tsunekawa, K. ; Djayaprawira, D. D. ; Watanabe, N. ; Nagahama, T. ; Fukushima, A. ; Kubota, H. ; Yuasa, S. ; Shiraishi, M. ; Suzuki, Y. / Tunneling spectroscopy of magnetic tunnel junctions : Comparison between CoFeB/MgO/CoFeB and CoFeB/Al-O/CoFeB. In: Journal of Applied Physics. 2006 ; Vol. 99, No. 8.

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AU - Nishioka, S.

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AU - Djayaprawira, D. D.

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AU - Fukushima, A.

AU - Kubota, H.

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AU - Shiraishi, M.

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Tunneling spectroscopy of magnetic tunnel junctions: Comparison between CoFeB/MgO/CoFeB and CoFeB/Al-O/CoFeB

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