| Inductive “Ring ” Writer (2007) | |||||||||||||
Abstract | |||||||||||||
| During the vitally critical times to the future advances in data storage technologies, perpendicular magnetic recording [1,2,3] has attracted a substantial amount of attention as a prime alternative to the technologies in place today [4,5]. As envisioned by the industry and academia leaders, perpendicular recording is the most likely candidate for the technology implemented in the next generations of hard drives. The most competitive virtue of this technology is the fact that while being technically the closest alternative to conventional longitudinal recording, it is capable of extending the (superparamagnetic) density limit [6] beyond what is achievable with longitudinal recording. It is widely believed that perpendicular magnetic recording paradigm will enable to sustain the current great strides in technological advances for the next several generations of magnetic storage solutions. This paper will cover the basic principles underlying perpendicular recording as well as the challenges associated with implementing the technology [7,8,9,10]. 1 Superparamagnetic limit and the need for a new technology | |||||||||||||
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