Spintronics is a form of signal processing similar to that used in traditional electronics, but it takes advantage of a property of electrons known as spin. Spin is often visualized as an arrow about which the electron rotates, much like a top spinning around its axis. Generating a stream of electrons in which these 'arrows' are all parallel - a so-called spin-polarized current (see image) - is the foundation upon which spintronics is based. Imperfections in a material, however, can easily destroy polarization.
Sustaining a spin-polarized current, in which the spin (depicted as an arrow) of each electron (yellow) is aligned, is integral to advancing spintronic applications
Copyright : 2013 A*STAR Data Storage Institute
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