METHOD AND STRUCTURE FOR ULTRA-HIGH DENSITY, HIGH DATA RATE FERROELECTRIC STORAGE DISK TECHNOLOGY USING STABILIZATION BY A SURFACE CONDUCTING LAYER

摘要

A electrometric access head includes a supporting substrate and a plurality of read elements mounted on the supporting substrate. Each read element includes an electrometric sensor for detection of a sign of polarization of domains within a ferroelectric data layer of a ferroelectric storage medium. The ferroelectric data layer serves as a layer for storing information as bits defined by the signs of polarization of domains within the ferroelectric data layer, each polarized domain including a volume dipole polarization within the ferroelectric data layer and including an area of bound charge on and adjacent to a surface of the ferroelectric data layer.