Abstract
The possibility of realizing linear magnetic recording systems over 15 Gb/in <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> recording density has been shown in our test with newly developed metal particulate (MP) tape using 35-nm-size fine metal particles and a GMR head designed for hard disk drive (HDD). It was done under a read-track-base calculation with the following media: magnetic layer thickness =60 nm, surface roughness <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">Ra</i> =2.0 nm.
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