Design optimization of planar-type write head for high density magnetic recording

摘要

The density of magnetic recording has been increasing at a very fast rate for the last several decades. A further increase of the density becomes more and more difficult because of the thermal fluctuation problem, among many others [1]. One way to avoid this problem is to use media with high magnetocrystalline anisotropy. This requires a write head which can generate a high write field.