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MA: Fachverband Magnetismus

MA 53: Magnetic Storage Media, Applications - Invited Talks

MA 53.1: Hauptvortrag

Donnerstag, 17. März 2011, 14:00–14:30, HSZ 04

From nanolithography to energy assisted writing - what is the limit to magnetic recording? — •Bruce Terris — Hitachi GST, San Jose, CA USA

As magnetic recording technology extends to ever higher areal density, it is possible that the often predicted, and constantly increasing, density limit for conventional magnetic recording will be reached. This limit will likely be in the range of 1 to 1.5 Tb/in2. However, new technologies are being explored which may extend this limit toward 10 Tb/in2 or beyond. These new technologies still have substantial unresolved questions on the underlying fundamental physics, will present manufacturing challenges, and will require significant changes to the hard disk drive. In this talk we will discuss the physical underpinnings and technology challenges of the technologies which are being pursued to push the density limit at least another factor of 10. These technologies include lithographically patterned single domain nm-scale islands, novel forms of energy assisted recording including near-field optical sources and spin torque oscillator microwave sources, and novel data encoding and architecture schemes.