Nanowerk  June 7, 2021 Currently, carbon-based overcoats (COCs), layers used to protect platters from mechanical damages and corrosion, occupy a significant part of this spacing. An international team of researchers (India, Singapore, UK, USA – Argonne National Laboratory, University of Illinois, Switzerland) replaced commercial COCs with one to four layers of graphene which fulfills all the ideal properties of an HDD overcoat in terms of corrosion protection, low friction, wear resistance, hardness, lubricant compatibility, and surface smoothness. They transferred graphene onto hard disks made of iron-platinum as the magnetic recording layer, and tested Heat-Assisted Magnetic Recording (HAMR) that enables an […]