Amorphous TbFe films for magnetic printing with laser writing

TbFe films were applied as media in magnetic printing. Magnetic domains which were produced thermomagnetically with laser beam scanning were developed with toner particles and these images were transferred to papers. 2 μm thick TbFe films with perpendicular anisotropy yields a resolution of 15 line/mm when a He-Ne laser beam (13mW) focussed to 2 μm in diameter was used to produce latent magnetic images. Printed images with gray tone could be obtained macroscopically by controlling the width and the line density of the reversed domains thermomagnetically written. TbFe films were proved to be useful for magnetic printing.