Abstract: A method and system for writing data to a media utilizing an energy assisted magnetic recording (EAMR) head are described. The EAMR head includes at least one laser and at least one EAMR transducer. The laser(s) provide energy. The EAMR transducer(s) are coupled with the laser. The EAMR transducer(s) are configured to direct the energy to spot(s) on the media and to write a plurality of tracks of data in a block. The method and system include writing a track of the plurality of tracks on the media within the spot(s) using the EAMR transducer and stepping a track pitch along a particular radial direction on the media. The method and system also include repeating the writing and stepping steps until the plurality of tracks for the block is written.

Abstract: An energy assisted magnetic recording (EAMR) transducer coupled with a laser is described. The EAMR transducer has an air-bearing surface (ABS) residing near a media during use. The EAMR transducer includes optical and writer modules. The optical module includes a waveguide and a near field transducer (NFT). The waveguide directs the energy from the laser toward the ABS. The NFT focuses the energy onto the media. The optical and writer modules are physically separate such that no portion of the waveguide is interleaved with a magnetic portion of the writer module. The writer module includes a write pole and coil(s). The write pole includes a pole-tip portion for providing a magnetic field to the media and a yoke. The pole-tip portion has an ABS-facing surface, a sloped surface, and a NFT-facing surface therebetween. The sloped surface is at least twenty-five and not more than sixty-five degrees from the NFT-facing surface.

Abstract: A discrete track perpendicular magnetic recording (PMR) disk and a method of fabricating the disk are described. The PMR disk may include a heat sink layer disposed above a substrate, intermediate layers disposed above the heat sink layer, and a magnetic recording layer disposed above the intermediate layers. The magnetic recording layer may have raised and recessed areas, where a heat conductive material may be disposed within one or more of the recessed areas.

Abstract: A method and system for providing an energy assisted magnetic recording (EAMR) transducer coupled with a laser are described. The EAMR transducer has an air-bearing surface (ABS) residing in proximity to a media during use. The method and system include providing waveguide(s), a near-field transducer (NFT), write pole(s), and coil(s). The waveguide(s) direct energy from the laser toward the ABS. The NFT is coupled with the waveguide and focuses the energy onto the media. The write pole(s) include a stitch for providing a magnetic field to the media and a yoke coupled to the stitch. The stitch includes an ABS-facing surface, a sloped surface, and an NFT-facing surface between the ABS-facing and sloped surfaces. The NFT-facing surface is substantially parallel to the NFT. The sloped surface is sloped at least twenty-five and not more than sixty-five degrees with respect to the NFT-facing surface. The coil(s) energize the write pole(s).

Abstract: A discrete track perpendicular magnetic recording (PMR) disk and a method of fabricating the disk are described. The PMR disk may include a heat sink layer disposed above a substrate, intermediate layers disposed above the heat sink layer, and a magnetic recording layer disposed above the intermediate layers. The magnetic recording layer may have raised and recessed areas, where a heat conductive material may be disposed within one or more of the recessed areas.

Abstract: The method and system provide a perpendicular magnetic recording (PMR) head having an air bearing surface (ABS). The PMR head includes first and second poles each having front and back gap regions, a first nonmagnetic insertion layer between the back gap regions, a magnetic pole layer with a front terminating at the ABS, a write gap, shield(s), a second nonmagnetic insertion layer between the second pole back gap region and the shield(s), and coil(s) between the shield(s) and the first pole. The magnetic pole layer terminates between the ABS and the second pole back gap region and has pole angle(s) of at least thirty and not more than fifty degrees. At least part of the magnetic pole layer resides on the second pole. Part of the shield(s) are adjacent to the write gap. Another part of the shield(s) is coupled with the second pole back gap region.

Abstract: A write pole for a read/write head of a disk drive system has a tapered surface on a leading edge thereof. Preferably, the tapered surface has a taper angle of between 0 and 20 degrees from a plane normal to the ABS. By having a write pole with a taper in this manner, sufficient write fields can be achieved even with thinner write pole tips on the ABS surface. By decreasing the thickness of the write pole tip in this manner while maintaining sufficiently high write fields, the skew profile of a write head can be decreased and areal density increased.

Abstract: A write pole for a read/write head of a disk drive system has a tapered surface on a leading edge thereof. Preferably, the tapered surface has a taper angle of between 0 and 20 degrees from a plane normal to the ABS. By having a write pole with a taper in this manner, sufficient write fields can be achieved even with thinner write pole tips on the ABS surface. By decreasing the thickness of the write pole tip in this manner while maintaining sufficiently high write fields, the skew profile of a write head can be decreased and areal density increased.

Abstract: A magnetic recording medium is made of a thin film medium that includes magnetic grains. At least one of a magnetization density of the magnetic grains, a crystalline anisotropy field of the magnetic grains, a thickness of the recording medium, an average diameter of the magnetic grains, and a surface packing fraction of the recording medium are selected so that resulting magneto-static fields both decrease thermal switching of individual magnetic grains and enhance collective switching of a group of magnetic grains in response to a switching magnetic field.

Abstract: A magnetic recording device including a longitudinal magnetic recording medium. The longitudinal magnetic recording medium includes a magnetically soft underlayer disposed under a longitudinal recording layer. A perpendicular write head is utilized to write data to the longitudinal magnetic recording medium wherein the longitudinal recording layer is disposed within an effective write gap formed by the perpendicular write head and the underlayer. The longitudinal component of the perpendicular write head is sufficient to switch the magnetic grains in the recording layer in the presence of the perpendicular field. The magnetic recording medium can have a high areal density and improved magnetic properties.

Abstract: A magnetic recording system includes a magnetic medium and a magnetic write head to write information on the magnetic medium. The magnetic write head includes a write pole having a downstream side that has a concave shaped portion when the write pole is viewed from an air bearing surface of the magnetic write head.