A Scanning Nonlinear Dielectric Microscope
Inset left: shows topography and electric dipole-moment
Inset right: Example of a ferroelectric information storage
For most of us, storing and accessing the vast majority of our computer data involves using either hard disk or solid state drives or perhaps a combination of both. Each method boasts its own advantages and while the battle for storage supremacy between the two rages in public, research at Japan's Tohoku University has revealed another option. Using a pulse generator to alter the electrical state of tiny dots on a ferroelectric medium, Kenkou Tanaka and Yasuo Cho have successfully recorded data at around eight times the density of current hard disk drives.