摘要:
A graphene layer, used as an anti-corrosive protection medium for magnetic media, overcomes the existing problem of reducing the carbon overcoat layer thickness for magnetic media. Unlike the amorphous carbon that is currently used as an anti-corrosion layer, the impenetrability of graphene to all known gaseous substances enables full corrosion protection of the underlying magnetic medium with a layer of graphene that may be, for example, as thin as a single layer of graphene. The dry transfer of graphene onto magnetic recording disks is enabled, such that the resulting interface of the graphene with the magnetic layer is protected from contact with impurities.
摘要:
The embodiments disclose a data storage device including a thickness gradient heat sink layer deposited over a heat sink layer deposited over a substrate, a thickness gradient non-magnetic thermal resist layer deposited over the thickness gradient heat sink layer, and a magnetic layer deposited over the thickness gradient non-magnetic thermal resist layer.
摘要:
In the present disclosure, a recording medium and a method of preparing a recording medium is provided. In a recording medium, a first annular servo track can be provided on a first layer of the recording medium, and second annular servo track can be provided on the first layer of the recording medium. The second annular servo track can be adjacent to the first annular servo track. In the recording medium, the first annular servo track and the second annular servo track are magnetically polarized and are magnetically opposing in polarity. A corresponding method of preparing a recording medium is provided.
摘要翻译:第一磁性层(106)和第二磁性层(107)依次层叠在基板(101)上。 第一磁性层(106)具有包含具有L10结构的FePt合金,具有L10结构的CoPt合金或具有L11结构的CoPt合金中任一种的晶粒的颗粒结构,并且还含有晶界偏析材料 的SiO 2,TiO 2,Cr 2 O 3,Al 2 O 3,Ta 2 O 5,ZrO 2,Y 2 O 3,CeO 2,MnO,TiO,ZnO,MgO和C中的至少一种,其中第一磁性层(106)中的晶界偏析材料的含量比 从面向衬底(101)的一侧向面向第二磁性层(107)的一侧减小。
摘要:
A novel magnetic recording medium is disclosed in which a plurality of magnetic data recording layers and navigation layers are separate from one another. By decoupling the navigation and data layers, data may be written to data layers without the need to align the written data along servo tracks. Thus, the data layers may be configured for high recording density. Beneficially, imperfections within the magnetic data layers may also be compensated for by the use of adaptive error correction schemes which vary the encoding/decoding of data during writing/reading based upon the local quality of the recording media.