Distribution of demagnetization field of ferromagnetic equilateral triangular prism recording media made by nanosphere lithography

K. Tang; H. W. Zhang; Q. Y. Wen; Z. Y. Zhong

doi:10.1117/12.649605

15 September 2005 Distribution of demagnetization field of ferromagnetic equilateral triangular prism recording media made by nanosphere lithography

K. Tang, H. W. Zhang, Q. Y. Wen, Z. Y. Zhong

Author Affiliations +

Proceedings Volume 5966, Seventh International Symposium on Optical Storage (ISOS 2005); 59660C (2005) https://doi.org/10.1117/12.649605
Event: Seventh International Symposium on Optical Storage (ISOS 2005), 2005, Zhanjiang, China

Abstract

We present an analytic expression for the point-function demagnetization tensor of equilateral triangular prism recording media made by nanosphere lithography. This result can be used to calculate the demagnetization field in the prism and may improve the precision in finite element micromagnetic models, especially for complex boundary geometric shapes. The corresponding demagnetization factors are calculated through the expression. The distribution of the demagnetization field is discussed at various aspect ratios with magnetization perpendicular to the triangle plane. It is found that the demagnetization field is enhanced in the vicinity of the surfaces and strongly depends on the aspect ratio.

Citation Download Citation

K. Tang, H. W. Zhang, Q. Y. Wen, and Z. Y. Zhong "Distribution of demagnetization field of ferromagnetic equilateral triangular prism recording media made by nanosphere lithography", Proc. SPIE 5966, Seventh International Symposium on Optical Storage (ISOS 2005), 59660C (15 September 2005); https://doi.org/10.1117/12.649605

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