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Spintronics is a new branch of electronics which utilizes the spin degree of freedom of an electron rather than the charge, as used in conventional devices. This paradigm by itself provides a huge potential in, for example, high density memories, non volatile reprogrammable logic, quantum computing and various other applications. Extensive research has been… (More)
A novel technique has been developed for the fabrication of Si quantum dot structures with controllable electron number through both top and side gates. We have tested devices ranging in size from 40 to 200 nm. By varying the density with the top gate, and controlling the input and output barriers of the dot with the side gates, conductance peaks are… (More)