Ultrahigh-density atomic force microscopy data storage with erase capability

摘要: We report a simple atomic force microscopy-based concept for hard disk-like data storage technology. Thermomechanical writing by heating Si cantilever in contact with spinning polycarbonate disk has already been reported. Here the medium replaced thin polymer layer on substrate, resulting significant improvements density. With this new medium, we achieve bit sizes of 10–50 nm, leading to densities 500 Gbit/in.2. also demonstrate novel high-speed and high-resolution thermal readback method, which uses same cantilevers that are used process, capability erase rewrite features repeatedly.