Quantum Spintronics, Magnetoelectronics, Spin Electronics. Electronic devices that exploit the spin of electrons as well as their charge. Unlike conventional electronics which is based on number of charges and their energy, and whose performance limited in speed and dissipation, spintronics is based on the direction of electron spin, and spin coupling, and is capable of much higher speed at much lower power. See our page on Spintronics. Also see Electronics and the single atom for a collection of articles (12 June 2002).