Prototype media characterization

 

Media technology is one of the cornerstones of a tape system. In order to continue to scale the areal recording density of future magnetic tape systems, the media must also be continuously improved [2011-2]. We work together with tape media manufactures to test and evaluate prototype media in order to help enable the development of media that will meet the requirements of future tape systems. Much of our current work focuses on the use of tape based on barium ferrite (BaFe) particles which can be produced using low cost particulate coating technologies.

Currently, we are investigating three complementary strategies for improving the SNR of particulate tape media:

  1. Reduced particle volume and improved size control (Figure 1)
  2. Perpendicular particle orientation (Figure 2) and
  3. Reduced media roughness to reduce magnetic spacing.
TEM images of BaFe particles
Cross-sectional TEM micrograph