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Stuart Parkin of IBM's Almaden Research Centre came up with the concept of spintroncs-based memory that has no moving parts, but in which the information moves. Racetrack memory stores digital data in the magnetic domain walls of nanowires. The bits of information, which are stored in the wire using the spin of electrons rather than an electronic charge, would be moved around at several hundred meters per second, using a spin polarized current. Adjacent bits would be delineated from one another via domain walls with magnetic vortices. This technology promises to yield information storage devices with high reliability, performance and capacity. [ABSTRACT FROM AUTHOR]