Abstract: A magnetic head system, and method for manufacturing a magnetic head are provided. Included is at least one layer and a heating element positioned adjacent the at least one layer. The at least one layer includes a plurality of sub-layers for providing an optimal thermal barrier.

Abstract: A magnetic head system, and method for manufacturing a magnetic head are provided. Included is at least one layer and a heating element positioned adjacent the at least one layer. The at least one layer includes a plurality of sub-layers for providing an optimal thermal barrier.

Abstract: A low resistance magnetic tunnel junction device, such as a memory cell in a nonvolatile magnetic random access memory (MRAM) array or a magnetoresistive read head in a magnetic recording disk drive, has a titanium oxynitride (TiOxNy) layer as the single-layer tunnel barrier or as one of the layers in a bilayer tunnel barrier. In a bilayer barrier the other barrier layer is an oxide or nitride of Al, Si, Mg, Ta, [[Si]] and Y, such as Al2O3, AlN, Si3N4, MgO, Ta2O5, TiO2, or Y2O3. The Ti barrier material can be alloyed with other known metals, such as Al and Mg, to produce barriers with TiAlOxNy and TiMgOxNy compositions.

Abstract: A low resistance magnetic tunnel junction device, such as a memory cell in a nonvolatile magnetic random access memory (MRAM) array or a magnetoresistive read head in a magnetic recording disk drive, has a titanium oxynitride (TiOxNy) layer as the single-layer tunnel barrier or as one of the layers in a bilayer tunnel barrier. In a bilayer barrier the other barrier layer is an oxide or nitride of Al, Si, Mg, Ta, Si and Y, such as Al2O3, AlN, Si3N4, MgO, Ta2O5, TiO2, or Y2O3. The Ti barrier material can be alloyed with other known metals, such as Al and Mg, to produce barriers with TiAlOxNy and TiMgOxNy compositions.

Abstract: A magnetic recording disk for thermally-assisted magnetic recording has a low thermal conductivity multilayered thermal barrier between the substrate and the magnetic recording layer to avoid rapid heat conduction away from the locally heated spot and to reduce the amount of power needed to raise the temperature of the recording media above a required value. The barrier comprises a plurality of alternating layers or bilayers of a metal having an electrical resistivity greater than approximately 100 microOhm-cm and a dielectric selected from the group consisting of oxides, nitrides and oxynitrides of one or more of Al and Si. The large number of metal/dielectric interfaces, each with high thermal resistance, reduces the out-of-plane thermal conductivity of the barrier, and the use of high electrical resistivity metal layers minimizes in-plane heat spreading.

Abstract: A magnetic recording disk for thermally-assisted magnetic recording has a low thermal conductivity multilayered thermal barrier between the substrate and the magnetic recording layer to avoid rapid heat conduction away from the locally heated spot and to reduce the amount of power needed to raise the temperature of the recording media above a required value. The barrier comprises a plurality of alternating layers or bilayers of a metal having an electrical resistivity greater than approximately 100 microOhm-cm and a dielectric selected from the group consisting of oxides, nitrides and oxynitrides of one or more of Al and Si. The large number of metal/dielectric interfaces, each with high thermal resistance, reduces the out-of-plane thermal conductivity of the barrier, and the use of high electrical resistivity metal layers minimizes in-plane heat spreading.