Fabrication and magnetic properties of CoPt perpendicular patterned media

CoPt dot-arrays with dot diameters ranging 80-1000 nm have been fabricated by using electron beam lithography and reactive ion etching. The fabricated dots had their magnetic easy axes perpendicular to the plane. Dots with 80-nm-diameter were observed as single domain by magnetic force microscopy. T...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 2000-10, Vol.235 (1-3), p.174-178
Main Authors: Aoyama, T, Okawa, S, Hattori, K, Hatate, H, Wada, Y, Uchiyama, K, Kagotani, T, Nishio, H, Sato, I
Format: Article
Language:English
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Summary:CoPt dot-arrays with dot diameters ranging 80-1000 nm have been fabricated by using electron beam lithography and reactive ion etching. The fabricated dots had their magnetic easy axes perpendicular to the plane. Dots with 80-nm-diameter were observed as single domain by magnetic force microscopy. The CoPt dot-array with 80-nm-diameter showed much higher thermal stability than continuous films.
ISSN:0304-8853