Magnetostatic interaction effects in switching field distribution of conventional and staggered bit-patterned media

M. Ranjbar; A. Tavakkoli; S. N. Piramanayagam; K. P. Tan; R. Sbiaa; S. K. Wong; T. C. Chong

doi:10.1088/0022-3727/44/26/265005

Magnetostatic interaction effects in switching field distribution of conventional and staggered bit-patterned media

M. Ranjbar^*, A. Tavakkoli, S. N. Piramanayagam, K. P. Tan, R. Sbiaa, S. K. Wong, T. C. Chong

^*Corresponding author for this work

Physics

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

18 Citations (Scopus)

Abstract

Effect of magnetostatic interaction on the switching field distribution (SFD) of nanodots with a diameter of 30 nm was investigated in square (conventional) and hexagonal (staggered) lattice configurations. The objective of the study is to achieve different kinds of magnetostatic interaction in experimental samples and to understand their influence on SFD. It was observed that the SFD was wider in the staggered lattice. Micromagnetic simulation was carried out and a fit of experimental results to the simulation was made to understand the observed trends. In addition, magnetic layers with an antiferromagnetic coupling configuration were also studied in the two geometries. The SFD of antiferromagnetically coupled dots was further reduced, highlighting the effect of magnetostatic interaction.

Original language	English
Article number	265005
Journal	Journal of Physics D: Applied Physics
Volume	44
Issue number	26
DOIs	https://doi.org/10.1088/0022-3727/44/26/265005
Publication status	Published - Jul 6 2011

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Acoustics and Ultrasonics
Surfaces, Coatings and Films

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10.1088/0022-3727/44/26/265005

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abstract = "Effect of magnetostatic interaction on the switching field distribution (SFD) of nanodots with a diameter of 30 nm was investigated in square (conventional) and hexagonal (staggered) lattice configurations. The objective of the study is to achieve different kinds of magnetostatic interaction in experimental samples and to understand their influence on SFD. It was observed that the SFD was wider in the staggered lattice. Micromagnetic simulation was carried out and a fit of experimental results to the simulation was made to understand the observed trends. In addition, magnetic layers with an antiferromagnetic coupling configuration were also studied in the two geometries. The SFD of antiferromagnetically coupled dots was further reduced, highlighting the effect of magnetostatic interaction.",

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AU - Ranjbar, M.

AU - Tavakkoli, A.

AU - Piramanayagam, S. N.

AU - Tan, K. P.

AU - Sbiaa, R.

AU - Wong, S. K.

AU - Chong, T. C.

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AB - Effect of magnetostatic interaction on the switching field distribution (SFD) of nanodots with a diameter of 30 nm was investigated in square (conventional) and hexagonal (staggered) lattice configurations. The objective of the study is to achieve different kinds of magnetostatic interaction in experimental samples and to understand their influence on SFD. It was observed that the SFD was wider in the staggered lattice. Micromagnetic simulation was carried out and a fit of experimental results to the simulation was made to understand the observed trends. In addition, magnetic layers with an antiferromagnetic coupling configuration were also studied in the two geometries. The SFD of antiferromagnetically coupled dots was further reduced, highlighting the effect of magnetostatic interaction.

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Magnetostatic interaction effects in switching field distribution of conventional and staggered bit-patterned media

Abstract

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