Abstract: Provided is a perpendicular magnetic recording medium. The perpendicular magnetic recording medium includes: a substrate; a soft magnetic layer disposed on the substrate; a recording layer disposed on the soft magnetic layer; and at least one hardness enhancing layer disposed in the soft magnetic layer or interposed between the soft magnetic layer and the recording layer.

Abstract: Provided is a perpendicular magnetic recording medium. The perpendicular magnetic recording medium includes: a substrate; a plurality of soft magnetic layers including a lower soft magnetic layer and an upper soft magnetic layer which are sequentially stacked on the substrate, wherein the upper soft magnetic layer has an anisotropic field greater than that of the lower soft magnetic layer; an isolating layer interposed between the lower and upper soft magnetic layers and preventing magnetic interaction between the lower and upper soft magnetic layers; an underlayer formed on the plurality of soft magnetic layers; and a recording layer formed on the underlayer and including a plurality of ferromagnetic layers each layer of which has a magnetic anisotropic energy which decreases as distance increases from the underlayer.

Abstract: A magnetic thin film structure, a magnetic recording medium including the same, and a method of manufacturing the magnetic recording medium are provided. The magnetic recording medium includes an under layer formed of a transition metal nitride on a substrate and a plurality of magnetic dots, which are unit recording regions, formed of a magnetic material having magnetic anisotropy energy between 106 erg/cc and 108 erg/cc.

Abstract: A perpendicular magnetic recording medium and a method of manufacturing the same are provided. The perpendicular magnetic recording medium comprises a recording layer including a plurality of regions formed in the depth direction of the recording layer and a magnetic anisotropy constant of a region relatively deeper than another region, among the plurality of regions, is greater than that of the another region. The method of manufacturing a perpendicular magnetic recording medium includes: forming a recording layer having perpendicular magnetic anisotropy; and irradiating the recording layer with ions.

Abstract: Provided are a magnetic recording medium and a method of manufacturing the magnetic recording medium. The magnetic recording medium includes a substrate, a soft magnetic underlayer formed on the substrate, a texturing layer formed on the soft magnetic underlayer and including a uniform pattern, and a recording layer including magnetic grains and a non-magnetic boundary region isolating the magnetic grains. The magnetic grains and the non-magnetic boundary region of the recording layer are formed into a regular granular structure by segregation according to the regular pattern of the texturing layer. Therefore, a regular granular structure can be formed in the recording layer without a process such as etching of the recording layer, so that the recording density of the magnetic recording medium can be largely improved.

Abstract: A perpendicular magnetic recording medium is provided. The perpendicular magnetic recording medium includes: a perpendicular magnetic recording layer formed on a substrate; and at least one soft magnetic under-layer formed between the substrate and the perpendicular magnetic recording layer, wherein the soft magnetic under-layer is made from an alloy of a non-magnetic material and a magnetic material which exists in the form of granular nanoparticles in matrix of the non-magnetic material, and at least two of the magnetic nanoparticles are spaced apart from one another by a predetermined distance so as to mutually make an anti-ferromagnetic coupling.

Abstract: A magnetic recording medium is provided. The magnetic recording medium includes: a substrate; a perpendicular magnetic recording layer which is formed over the substrate; a first soft magnetic underlayer which is disposed between the perpendicular magnetic recording layer and the substrate; a second soft magnetic underlayer which is disposed between the first soft magnetic underlayer and the perpendicular magnetic recording layer; and an isolation layer which is disposed between the first soft magnetic underlayer and the second magnetic layer and which prevents magnetic interaction between the first soft magnetic underlayer and the second soft magnetic underlayer, wherein anisotropy field Hk of the second soft magnetic underlayer is greater than anisotropy field Hk of the first soft magnetic underlayer.

Abstract: A magnetoresistance device that has a substrate, an underlayer, a magnetoresistance structure, and a diffusion barrier layer is provided. The underlayer is formed on top of the substrate. The magnetoresistance structure is formed on top of the underlayer. The diffusion barrier layer is formed between the underlayer and the magnetoresistance structure.

Abstract: Provided are perpendicular magnetic recording media including a soft magnetic underlayer with a diffusion barrier layer. The soft magnetic underlayer includes an underlayer, a diffusion barrier layer, and an AFM layer, and a soft magnetic layer.

Abstract: A patterned medium and a method of manufacturing the same are provided. The patterned medium includes a data region having a plurality of recording dots arrayed along a plurality of tracks; and a non-data region comprising a part of the patterned medium other than the data region, the non-data region having a plurality of pattern marks. The method includes depositing an aluminum layer on a base substrate; depositing a photo-resist on the aluminum layer; forming a pattern on the photo-resist using a lithography process; forming a fine pattern by forming a plurality of cavities on a portion of the aluminum layer which is exposed through the photo-resist; removing the photo-resist; forming a mold pattern; imprinting the mold pattern on a media substrate to form cavities on the media substrate; and filling the cavities with a recording material.