| abstract |
In accordance with the invention, a high density recording medium is fabricated by novel methods. The medium comprises an array of nanomagnets disposed within a matrix or on the surface of substrate material. The nanomagnets are advantageously substantially perpendicular to a planar surface. The nanomagnets are preferably nanowires of high coercivity magnetic material inside a porous matrix or an array of vertically aligned nanotubes, or on the surface of flat substrate. Such media can provide ultra-high density recording with bit size less than 50 nm and even less than 20 nm. A variety of techniques are described for making such media. |