Magnetic recording medium with cushion layer configured to reduce diffusion of titanium into magnetic recording layer

Various apparatuses, systems, methods, and media are disclosed to provide a heat assisted magnetic recording (HAMR) media having a magnetic recording layer on a magnesium oxide-titanium oxide (MTO) cushion layer, where the MTO cushion layer includes an additive material that is chemically bonded with titanium. In some examples, the additive material includes iron oxide, iron, carbon, or various aluminum oxides. By providing the additive material chemically bonded to the titanium of the MTO to the MTO, diffusion of titanium from the MTO cushion layer into the magnetic recording layer is mitigated to provide an improved recording layer that achieves improved areal density. In some embodiments, an additional magnesium oxide-nitrogen cushion layer is also provided, which may include more of the additive material. 本发明公开了各种装置、系统、方法和介质以提供热辅助磁记录(HAMR)介质，该HAMR介质具有在氧化镁-氧化钛(MTO)垫层上的磁记录层，其中该MTO垫层包含与钛化学键合的添加剂材料。在一些示例中，该添加剂材料包括氧化铁、铁、碳或各种氧化铝。通过向MTO提供与该MTO的该钛化学键合的该添加剂材料，减轻了钛从该MTO垫层到该磁记录层中的扩散，以提供实现改善的面密度的改善的记录层。在一些实施方案中，还提供了附