A novel approach to create high-density magnetic data storage
Monday, February 2, 2009 - 04:49
in Physics & Chemistry
In order to achieve higher storage densities on computer disks, the last decades were dominated by optimisation of magnetic materials, i.e. the magnetic particles (grains) were gradually shrunk while, at the same time, the magnetic stability (magnetic anisotropy) was increased. Usually, about 100 to 600 grains form one bit, i.e. the nowadays smallest storage unit. Each grain is about 10 nanometres in size. These grains are arranged next to each other on glass substrates that are plated with cobalt, chrome, and platinum...