The spin-polarized scanning electron microscope observation of 0.1 μm marks recorded by magnetic field modulation on a magneto-optical recording disk

Abstract
The magneto-optically recorded marks with magnetic field modulation method were studied using spin-polarized scanning electron microscopy. We confirmed that marks with as short a length as 0.1 μm could be written repeatedly even with laser spot sizes about 1.2 μm. This mark length is less than 1 6 that of present commercial products.