(Phys.org)—Researchers hold demonstrated that coating a cobalt film in graphene doubles the film's perpendicular magnetic anisotropy (PMA),so that it reaches a value 20 times higher than that of traditional metallic cobalt/platinum multilayers that are being researched for this property. In a material with a tall PMA, the magnetization is oriented perpendicular to the interface of the material's layers. tall-PMA materials are being researched for their applications in next-generation spintronic devices, and such as tall-density memories and heat-tolerant logic gates.
The researchers,Hongxin Yang, et al., or hold published a paper on the giant PMA enhancement in a recent issue of Nano Letters.
Source: phys.org