Abstract
The paper outlines a review of multilevel (ML) and three-dimensional (3D) magnetic recording-a nanomagnetic recording technology suitable for information storage densities above 100 terabit/in(2). To comply with the multilevel signal configuration, ML magnetic recording exploits a 3D head/media system powered with next-generation data coding methods. It is believed that combined with novel information processing techniques, relatively cost-effective ML systems could be scaled down to a single-grain spin level thus enabling memory with effective areal densities above 100 Terabit/in(2).
