Magnetic recording medium utilizing patterned nanoparticle arrays

摘要

A method of patterning a layer of ferromagnetic metallic nanoparticles for use as a portion of a magnetic recording medium is provided. The method involves providing a substrate and coating the substrate with an unmodified affinity layer. Portions of the unmodified affinity layer are exposed to a reactive material that chemically modifies the affinity layer. The modified portions are chemically attractive to the nanoparticles. The nanoparticles are then deposited on the chemically modified portions of the affinity layer. A recording medium comprising a substrate, a modified affinity layer and a ferromagnetic nanoparticle metallic layer is also disclosed.