Hard disk drive capacity at high magnetic areal density

  title={Hard disk drive capacity at high magnetic areal density},
  author={G. Tarnopolsky},
  journal={IEEE Transactions on Magnetics},
Increases in recording areal density have propelled the disk drive industry in the last dozen years. Several studies and research programs strive to accomplish an areal density of 1 Tb/in/sup 2/. At present, the future of the hard disk drive technology appears predicated on monotonic and unbound areal density growth. The system consequences of using large areal densities are the subject of this paper. It is argued that the limited signal-to-noise ratio (SNR) predicted at 1 Tb/in/sup 2/, as well… CONTINUE READING