A magnetic recording medium includes: a substrate; an underlayer; and a magnetic layer including an alloy having a L1.sub.0 structure and a (001) orientation, wherein the substrate, the underlayer, and the magnetic layer are stacked in the recited order, and wherein the magnetic layer has a granular structure and includes a carbon hydride, a boron hydride, or a boron nitride hydride.

The invention provides a chemical-mechanical polishing composition comprising (a) an abrasive comprising colloidal silica and fused silica, (b) a compound of formula (I) or a combination of a compound of formula (II) and a hydrophobic organic compound, (c) an amino acid, (d) hydrogen peroxide, and (e) water, wherein the polishing composition has a pH of about 1 to about 5. The invention also provides a method of chemically-mechanically polishing a substrate, especially a nickel-phosphorous substrate, by contacting the substrate with the inventive chemical-mechanical polishing composition.

A stack includes a substrate and a magnetic recording layer. Disposed between the substrate and magnetic recording layer is an MgOTi(ON) layer.

The magnetic tape includes a non-magnetic support; and a magnetic layer including ferromagnetic powder and a binding agent on the non-magnetic support, in which the magnetic layer includes one or more components selected from the group consisting of fatty acid and fatty acid amide, a CH derived C concentration calculated from a CH peak area ratio of C1s spectra obtained by X-ray photoelectron spectroscopic analysis performed on a surface of the magnetic layer at a photoelectron take-off angle of 10 degrees is equal to or greater than 45 atom %, and an absolute value N of a difference between a refractive index Nxy measured regarding an in-plane direction of the magnetic layer and a refractive index Nz measured regarding a thickness direction of the magnetic layer is 0.25 to 0.40.

A magnetic recording medium includes a substrate, a seed layer, an under layer, and a perpendicular recording layer having a granular structure. (Ms.Math.??.sup.1.5(1?Rs).sup.0.33), Ms, and ? satisfy (Ms.Math.?.Math.?.sup.1.5(1?Rs).sup.0.33)?0.1 [?.Math.emu.Math.(mm).sup.?1.5], Ms?450 [emu/cc], and ??1.2. In the above formulas, Ms indicates a saturated magnetization amount, ? indicates the gradient of a M-H loop around a coercive force Hc, ? indicates the thickness of the perpendicular recording layer, and Rs indicates a squareness ratio.

A recording medium is provided, such as paper, secured by magnetic microwires. The recording medium comprises: a pulp structure formed by pulp fibers, said pulp structure carrying microwires having a metal core of a predetermined material composition, and an insulating layer coating on said metal core; and at least one coating layer on at least one side of said pulp structure. The pulp structure is a single-layer structure with the microwires fully embedded in said single layer, the microwires having cross-sectional dimensions approximately equal to cross-sectional dimensions of the pulp fibers.

A layer stack for growing graphene or carbon nanotubes (CNTs) is described. The layer stack comprises a substrate, a protective layer, and an attachment surface disposed therebetween. The protective layer is configured to allow carbon diffusion therethrough to the attachment surface, such that graphene or CNTs grow therefrom.

Provided is a magnetic recording medium with a tape shape capable of correcting a change in width of the magnetic recording medium by adjusting a running tension of the magnetic recording medium in a case where the magnetic recording medium is saved or caused to run in a high-temperature environment. The magnetic recording medium is a magnetic recording medium with a tape shape, an amount of change in average width of the magnetic recording medium before and after the magnetic recording medium is left still for 40 hours in an environment at a temperature of 50? C. and a relative humidity of 40% RH in a state where a tension of 0.55 N is applied in a longitudinal direction is 170 ppm or less, and an average tension responsiveness with respect to a tension in the longitudinal direction in the environment at a temperature of 50? C. and a relative humidity of 40% RH is 700 ppm/N or more.

A method of producing a NiP alloy sputtering target, wherein a NiP alloy having a P content of 15 to 21 wt % and remainder being Ni and unavoidable impurities is melted and atomized to prepare a NiP alloy atomized powder having an average grain size of 100 m or less, the NiP alloy atomized powder is mixed with a pure Ni atomized powder, and the obtained mixed powder is hot pressed. An object of the present invention is to provide a method of producing a NiP alloy sputtering target which achieves a small deviation from an intended composition.

Perpendicular magnetic recording media including a carbon grain isolation initiation layer for reducing intergranular exchange coupling in the recording layer are provided. In one such case, the media includes a substrate, a plurality of underlayers on the substrate, a grain isolation initiation layer (GIIL) on the plurality of underlayers, the GIIL including C, a metal, and an oxide, and a magnetic recording layer directly on the GIIL and including a non-ordered structure. In another case, a method of fabricating such magnetic media is provided.