Magnetization reversal processes in submicron Co dots and antidots arrays

Y. Otani; T. Kohda; S. G. Kim; K. Fukamichi; O. Kitakami; Y. Shimada

doi:10.1016/S0304-8853(98)01149-4

Magnetization reversal processes in submicron Co dots and antidots arrays

Y. Otani, T. Kohda, S. G. Kim, K. Fukamichi, O. Kitakami, Y. Shimada

Division of Inorganic Material Research

Research output: Contribution to journal › Conference article › peer-review

8 Citations (Scopus)

Abstract

Arrays of submicron polycrystalline and epitaxially grown (1 0 0) hcp Co dots and antidots were prepared in order to study the magnetization reversal processes influenced by well defined anisotropy, dipolar and exchange fields. The magnetization reversal processes for both polycrystalline and epitaxial Co dot arrays are found to be initiated by domain wall nucleation. The domain wall propagation is regulated by the evolution of the effective internal field. The antidots exhibit peculiar stripe domains in the remanent state. The direction of the stripes is well determined by the applied magnetic field direction.

Original language	English
Pages (from-to)	483-485
Number of pages	3
Journal	Journal of Magnetism and Magnetic Materials
Volume	198
DOIs	https://doi.org/10.1016/S0304-8853(98)01149-4
Publication status	Published - 1999 Jun 1
Event	Proceedings of the 1998 3rd International Symposium on Metallic Multilayers (MML-98) - Vancouver, BC, Can Duration: 1998 Jun 14 → 1998 Jun 19

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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

abstract = "Arrays of submicron polycrystalline and epitaxially grown (1 0 0) hcp Co dots and antidots were prepared in order to study the magnetization reversal processes influenced by well defined anisotropy, dipolar and exchange fields. The magnetization reversal processes for both polycrystalline and epitaxial Co dot arrays are found to be initiated by domain wall nucleation. The domain wall propagation is regulated by the evolution of the effective internal field. The antidots exhibit peculiar stripe domains in the remanent state. The direction of the stripes is well determined by the applied magnetic field direction.",

author = "Y. Otani and T. Kohda and Kim, {S. G.} and K. Fukamichi and O. Kitakami and Y. Shimada",

note = "Funding Information: The authors would like to thank Mr. T. Yamaoka of Seiko Instruments Inc. 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 Japan.; Proceedings of the 1998 3rd International Symposium on Metallic Multilayers (MML-98) ; Conference date: 14-06-1998 Through 19-06-1998",

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doi = "10.1016/S0304-8853(98)01149-4",

language = "English",

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pages = "483--485",

journal = "Journal of Magnetism and Magnetic Materials",

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T1 - Magnetization reversal processes in submicron Co dots and antidots arrays

AU - Otani, Y.

AU - Kohda, T.

AU - Kim, S. G.

AU - Fukamichi, K.

AU - Kitakami, O.

AU - Shimada, Y.

N1 - Funding Information: The authors would like to thank Mr. T. Yamaoka of Seiko Instruments Inc. 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 Japan.

PY - 1999/6/1

Y1 - 1999/6/1

N2 - Arrays of submicron polycrystalline and epitaxially grown (1 0 0) hcp Co dots and antidots were prepared in order to study the magnetization reversal processes influenced by well defined anisotropy, dipolar and exchange fields. The magnetization reversal processes for both polycrystalline and epitaxial Co dot arrays are found to be initiated by domain wall nucleation. The domain wall propagation is regulated by the evolution of the effective internal field. The antidots exhibit peculiar stripe domains in the remanent state. The direction of the stripes is well determined by the applied magnetic field direction.

AB - Arrays of submicron polycrystalline and epitaxially grown (1 0 0) hcp Co dots and antidots were prepared in order to study the magnetization reversal processes influenced by well defined anisotropy, dipolar and exchange fields. The magnetization reversal processes for both polycrystalline and epitaxial Co dot arrays are found to be initiated by domain wall nucleation. The domain wall propagation is regulated by the evolution of the effective internal field. The antidots exhibit peculiar stripe domains in the remanent state. The direction of the stripes is well determined by the applied magnetic field direction.

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SP - 483

EP - 485

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

SN - 0304-8853

T2 - Proceedings of the 1998 3rd International Symposium on Metallic Multilayers (MML-98)

Y2 - 14 June 1998 through 19 June 1998

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