This chapter outlines a study of multilevel (ML) and three-dimensional (3D) magnetic recording-a nanomagnetic recording technology suitable for information storage densities above 10 Tbit/in2. 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, when 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 Tbit/in2.
- Error-correcting algorithms - excessive complexity or prohibitively slow data processing
- Multilevel and three-dimensional nanomagnetic recording
- Multilevel data encoding
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