Media structure with selected spacer configured to improve heat-assisted magnetic recording

Various apparatuses, systems, methods, and media are disclosed to provide a heat assisted magnetic recording (HAMR) media. The HAMR medium includes a substrate, a heat dissipation layer on the substrate, and a plurality of magnetic recording layers on the heat dissipation layer. The plurality of magnetic recording layers includes a first magnetic layer and a second magnetic layer disposed on the first magnetic layer. The second magnetic layer comprises FePt-Ag-Cu-X, wherein X is a spacer comprising BN. The HAMR media may use a BN-based spacer to improve the thermal gradient of the HAMR media to achieve better areal density capability (ADC) and enable the use of an MgO underlayer having a reduced thickness. 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介质包括基板、该基板上的散热层以及该散热层上的多个磁记录层。该多个磁记录层包括第一磁层和设置在该第一磁层上的第二磁层。该第二磁层包含FePt-Ag-Cu-X，其中X是包含BN的隔离物。该HAMR介质可以使用基于BN的隔离物来改善该HAMR介质的热梯度以获得更好的面密度能力(ADC)并且使得能够使用具有减小的厚度的MgO底层。