Magnetization reversal in submicron ferromagnetic dots and antidots arrays

Yoshichika Otani; Seung Ou Kim; Tetsunori Kohda; D. Kazuaki Fukamichi; Osamu Kitakami; Yutaka Shimada

doi:10.1109/20.706366

Magnetization reversal in submicron ferromagnetic dots and antidots arrays

Yoshichika Otani, Seung Ou Kim, Tetsunori Kohda, D. Kazuaki Fukamichi, Osamu Kitakami, Yutaka Shimada

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

33 Citations (Scopus)

Abstract

Arrays of submicron Co rectangular dots with the aspect ratio ranging from 1 to 4 and antidots with the aspect ratio 4 were prepared by a high resolution lithography technique. Magnetic force microscope observations and magnetization measurements show that the magnetic state of square Co dots are well controlled by the shape anisotropy, whereas the antidots exhibit peculiar stripe domains at the remanent state. The direction of the stripes are well determined by the previously applied field direction.

Original language	English
Pages (from-to)	1090-1092
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	34
Issue number	4 PART 1
DOIs	https://doi.org/10.1109/20.706366
Publication status	Published - 1998
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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10.1109/20.706366

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title = "Magnetization reversal in submicron ferromagnetic dots and antidots arrays",

abstract = "Arrays of submicron Co rectangular dots with the aspect ratio ranging from 1 to 4 and antidots with the aspect ratio 4 were prepared by a high resolution lithography technique. Magnetic force microscope observations and magnetization measurements show that the magnetic state of square Co dots are well controlled by the shape anisotropy, whereas the antidots exhibit peculiar stripe domains at the remanent state. The direction of the stripes are well determined by the previously applied field direction.",

author = "Yoshichika Otani and Kim, {Seung Ou} and Tetsunori Kohda and Fukamichi, {D. Kazuaki} and Osamu Kitakami and Yutaka Shimada",

note = "Funding Information: The authom would like to thank M i T. Yamaoka of Seiko InstrumentsI nc. for his kindness to perform MFM observations. This work is partly supported by the new energy and industrial technology development organization (NEDO), RFTF of Japan Society for the Promotion of Science, and the Grant-in-aid for Scientific Research from the Ministry of Education, Science, Sports and Culture in Japau.",

year = "1998",

doi = "10.1109/20.706366",

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T1 - Magnetization reversal in submicron ferromagnetic dots and antidots arrays

AU - Otani, Yoshichika

AU - Kim, Seung Ou

AU - Kohda, Tetsunori

AU - Fukamichi, D. Kazuaki

AU - Kitakami, Osamu

AU - Shimada, Yutaka

N1 - Funding Information: The authom would like to thank M i T. Yamaoka of Seiko InstrumentsI nc. for his kindness to perform MFM observations. This work is partly supported by the new energy and industrial technology development organization (NEDO), RFTF of Japan Society for the Promotion of Science, and the Grant-in-aid for Scientific Research from the Ministry of Education, Science, Sports and Culture in Japau.

PY - 1998

Y1 - 1998

N2 - Arrays of submicron Co rectangular dots with the aspect ratio ranging from 1 to 4 and antidots with the aspect ratio 4 were prepared by a high resolution lithography technique. Magnetic force microscope observations and magnetization measurements show that the magnetic state of square Co dots are well controlled by the shape anisotropy, whereas the antidots exhibit peculiar stripe domains at the remanent state. The direction of the stripes are well determined by the previously applied field direction.

AB - Arrays of submicron Co rectangular dots with the aspect ratio ranging from 1 to 4 and antidots with the aspect ratio 4 were prepared by a high resolution lithography technique. Magnetic force microscope observations and magnetization measurements show that the magnetic state of square Co dots are well controlled by the shape anisotropy, whereas the antidots exhibit peculiar stripe domains at the remanent state. The direction of the stripes are well determined by the previously applied field direction.

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Magnetization reversal in submicron ferromagnetic dots and antidots arrays

Abstract

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