Magneto-optical memory and method of producing such a memory
AssigneeU.S. Philips Corporation
InventorsKlaus W. Gerstenberg, Heinrich Heitmann
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AssigneeU.S. Philips Corporation
InventorsKlaus W. Gerstenberg, Heinrich Heitmann
Estimating the term…
Magneto-optical memory having a substrate of a material which is transparent for the visible-to-infrared spectral range, on which there are provided, in this sequence, a dielectric layer which is transparent for the visible-to-infrared spectral range and has a refractive index which is higher than the refractive index of the substrate and constitutes a diffusion barrier layer for oxygen and/or water, an in essence amorphous and/or in essence micro-crystalline magneto-optical layer with uniaxial anisotropy and a magnetic ordering temperature higher than ambient temperature and a top layer which acts as a reflection or interference layer and as a diffusion barrier layer for oxygen and/or water, the dielectric layer being a layer which is deposited from organic silicon materials by means of a PCVD process.
A magneto-optical memory having a substrate of a material which is transparent for the visible to infrared spectral range and on which, there are provided in the following sequence, an elastic dielectric layer which is transparent at the visible-to-infrared spectral range and has a refractive index which is higher than the refractive index of the substrate and which at a wavelength of 800 nm is 1.9-2.5, has an absorption coefficient K<0.05 and constitutes a diffusion barrier layer for oxygen and/or water, and is deposited on the substrate from organic silicons by a PCVD (plasma-activated chemical vapor deposition) process, an essentially amorphous and/or micro-crystalline magneto-optical layer with uniaxial anisotropy and a magnetic ordering temperature>ambient temperature and a top layer acting as a reflection or interference layer and as a diffusion barrier layer for oxygen and/or water.
Dependencies are inferred from the claim text.