Discovery of Spin-Motive Force--'Spin Battery' Using Nano-Magnets

摘要

The existence of a spin-motive force, a correction to Faraday's law of induction, has been proven in experiment using a magnetic tunnel junction with nano-meter-sized magnetic particles [1]. This discovery enables direct conversion between magnetic and electrical energies, which opens the way for applications in ultra-high sensitivity magnetic sensors as well as new type of "spin batteries."