@article{0c05686214034554b8aa349356135a24,
title = "Improvement of hard magnetic properties in microfabricated L1 0-FePt dot arrays upon post-annealing",
abstract = "Epitaxial L10 -FePt (001) dot arrays were fabricated through the use of a microfabrication process. The lateral size of square dots was changed in the range of 0.2 to 5 μm. The coercivity (Hc) increased after patterning a continuous film to dot arrays. Furthermore, Hc was drastically enhanced by post-annealing, and Hc exceeding 20 kOe was achieved for the dots with 0.2 × 0.2 μm2 annealed at 600°C, in contrast to the continuous film showing low Hcof 1kOe. The enhancement of Hc for dot arrays upon annealing was attributed to the decrease of structure defects caused by the damage due to the microfabrication, which provide the nucleation sites where reversed domains are generated at a low field.",
keywords = "Domain wall displacement, Dot array, FePt ordered alloy, Microfabrication, Post-annealing",
author = "Takeshi Seki and Toshiyuki Shima and Kay Yakushiji and Koki Takanashi and Li, {Guo Qing} and Shunji Ishio",
note = "Funding Information: A part of the structural characterization was performed at Laboratory for Advanced Materials, IMR, Tohoku University. The authors thank Dr. S. Mitani for useful discussion and Y. Murakami for technical assistance. This work was supported by the Special Coordination Funds for Promoting Science and Technology on “Nanohetero Metallic Materials” from the Ministry of Education, Culture, Sports, Science and Technology (MEXT).",
year = "2005",
month = oct,
doi = "10.1109/TMAG.2005.854787",
language = "English",
volume = "41",
pages = "3604--3606",
journal = "IEEE Transactions on Magnetics",
issn = "0018-9464",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "10",
}