Spintronics:poised For Next Great Memory Breakthrough?

摘要

The future is very bright for the field of spintronics. Spintronic sensing devices have revolutionized our ability to store massive amounts of digital data at very low cost, effectively providing the modern world with instant access to information no matter where we are. Magnetic disk drives, however, are slow, energy-consuming, and not very reliable. A new technology, racetrack memory, which uses some of the spintronic concepts, promises to provide a data storage device that combines the low cost of a magnetic disk drive with the high performance and reliability of conventional RAM within a few years.