A deposition apparatus, which forms a film on a substrate, includes a rotation unit configured to rotate a target about a rotating axis; a striker configured to generate an arc discharge; a driving unit configured to drive the striker so as to make a close state which the striker closes to a side surface around the rotating axis of the target to generate the arc discharge; and a control unit configured to control rotation of the target by the rotation unit so as to change a facing position on the side surface of the target facing the striker in the close state.

A magnetic recording device includes a substrate, an intermediate layer disposed on the substrate, a magnetic recording layer disposed on the intermediate layer, and a graphene overcoat disposed on the magnetic recording layer. The graphene overcoat includes at least one layer of a graphene monoatomic layer which is a sheet-like monoatomic layer of sp2 bonded carbon atoms. A transition layer is interposed between the graphene overcoat and the magnetic recording layer. The transition layer includes carbon and at least one metal of the magnetic recording layer.

A magnetic recording medium according to one embodiment includes an underlayer and a magnetic layer above the underlayer. The magnetic layer includes a first magnetic material and particulates. A solid protective layer is positioned above the magnetic layer, the protective layer including a second material. At least some of the particulates of the magnetic layer protrude completely through the protective layer. A method for forming a magnetic recording medium according to one embodiment includes forming a magnetic layer above a substrate, the magnetic layer including a first magnetic material and particulates, and forming a solid protective layer above the magnetic layer to a thickness whereby some of the particulates protrude through the protective layer and are exposed along an upper surface of the protective layer.

A method for forming a magnetic recording medium according to one embodiment includes forming a magnetic layer above an underlayer. The magnetic layer includes a first magnetic material and particulates. A protective layer is formed above the magnetic layer, the protective layer including a second material. A method for forming a magnetic recording medium according to another embodiment includes forming a first nonmagnetic layer above a base film. The first nonmagnetic layer has first nonmagnetic particles. A second nonmagnetic layer is formed above the first nonmagnetic layer, the second nonmagnetic layer having second nonmagnetic particles. A magnetic layer is formed above the second nonmagnetic layer, the magnetic layer including a magnetic material.

A magnetic recording medium according to one embodiment includes a base film and a first nonmagnetic layer above the base film. The first nonmagnetic layer has first nonmagnetic particles. A second nonmagnetic layer is positioned above the first nonmagnetic layer, the second nonmagnetic layer having second nonmagnetic particles. A magnetic layer is positioned above the second nonmagnetic layer, the magnetic layer including a magnetic material.

A magnetic recording medium according to one embodiment includes an underlayer and a magnetic layer above the underlayer. The magnetic layer includes a first magnetic material and particulates. A protective layer is positioned above the magnetic layer, the protective layer including a second material. A magnetic recording medium according to another embodiment includes a base film and a first nonmagnetic layer above the base film. The first nonmagnetic layer has first nonmagnetic particles. A second nonmagnetic layer is positioned above the first nonmagnetic layer, the second nonmagnetic layer having second nonmagnetic particles. A magnetic layer is positioned above the second nonmagnetic layer, the magnetic layer including a magnetic material.

A film forming apparatus includes chambers configured to perform a film forming process, a carrier configured to hold a substrate to be subjected to the film forming process in the chambers, and a transport mechanism configured to successively transport the carrier through the chambers. The carrier includes a support surface configured to support the carrier from below when transporting the carrier, and the support surface is provided parallel to the transport direction. The chambers include rotating members, provided parallel to the transport direction, and configured to make contact with the support surface when transporting the carrier. The rotating members are made of a magnetic material, and a magnet is provided around each of the rotating members.

A disk hub is configured to retain a magnetic recording medium including an annulus shape and a layer configured for magnetic recording. The disk hub includes a base plate portion for supporting an inner diameter area of the magnetic recording medium and a stem portion on the base plate portion. The base plate portion is configured to support the inner diameter area of the magnetic recording medium. The stem portion includes a first section with a frustoconical shape and a second section extending between the first section and the base plate portion. A circumference of the second section increases in a direction away from the base plate portion, and a circumference of the first section decreases in the direction away from the base plate portion. The disk hub includes an electrostatic dissipative material. The electrostatic dissipative material can be infused with carbon nanotubes.

In one embodiment, a multidentate perfluoropolyether (PFPE) lubricant has the formula S.sub.e-S.sub.o-S.sub.i-S.sub.L-S.sub.i-S.sub.o-S.sub.e, where each S.sub.o includes at least one perfluoroethyl ether unit, S.sub.L is a linker segment, and each S.sub.e and S.sub.i include at least one functional group configured to attach to a surface. In another embodiment, a multi dentate PFPE lubricant has the formula S.sub.e-S.sub.o(a)-S.sub.i-S.sub.m-S.sub.i-S.sub.o(b)-S.sub.e, where each S.sub.o(a), S.sub.o(b), and S.sub.m include at least one perfluoroethyl ether unit with the proviso that S.sub.m has a different number of perfluoroethyl ether units than at least one of So.sub.(a) and S.sub.o(b), and each S.sub.e and S.sub.i include at least one functional group configured to attach to a surface.

A recording device comprising an overcoat layer, wherein the overcoat layer comprises an amorphous carbon overcoat layer having a crystallinity (C)0.8.