Abstract
Abstract This chapter explores the future scaling potential of magnetic tape technology based on low-cost particulate media. We first discuss the state of the art of particulate media. Moreover, we review the achievements and the technologies behind the recent 29.5 Gbit/in 2 areal density demonstration using low-cost particulate BaFe media. Finally, we examine the potential for further scaling, posing the questions: “Can magnetic tape be scaled to 100 Gbit/in 2 ?” and “What technologies are required to do so?” We conclude that using a combination of the technologies described in this chapter, the roughly 50 Gbit/in 2 areal density predicted by the INSIC roadmap to be required for a 128-TB cartridge appears achievable. Pushing these technologies further, a linear density of 650-800 kbit/in and a track pitch in the range of 0.165-0.2 μm may also be feasible, leading to an achievable areal density of 100 Gbit/in 2 .
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