Open Access. Powered by Scholars. Published by Universities.®

Physics Commons

Open Access. Powered by Scholars. Published by Universities.®

Series

Faculty Publications, Department of Physics and Astronomy

Domain images

Articles 1 - 1 of 1

Full-Text Articles in Physics

Focused Ion Beam Milled Copt Magnetic Force Microscopy Tips For High Resolution Domain Images, L. Gao, Lanping Yue, T. Yokota, Ralph Skomski, Sy-Hwang Liou, H. Takahoshi, Hitoshi Saito, S. Ishio Jul 2004

Focused Ion Beam Milled Copt Magnetic Force Microscopy Tips For High Resolution Domain Images, L. Gao, Lanping Yue, T. Yokota, Ralph Skomski, Sy-Hwang Liou, H. Takahoshi, Hitoshi Saito, S. Ishio

Faculty Publications, Department of Physics and Astronomy

Abstract—High-coercivity CoPt magnetic force microscope tips have been modified by focused ion beam milling to improve the resolution of magnetic domain images. The magnetic materials around the apex have been removed, leaving a 30-nm diameter magnetic particle at the tip end. Due to the smaller amount of magnetic material, the stray field from this new tip is significantly reduced, and the spatial resolution of the magnetic domain images is improved. The tip is used to obtain high-resolution domain images of a CoCrPt-SiO2/Ru perpendicular recording medium with linear recording densities from 800 to 1000 kfci. Magnetic patterns of 900 ...