Abstract:A new proposal is given to design a spin half-adder in a nanojunction. It is well known that at finite voltage a net circulating current (known as "circular current") appears within a mesoscopic ring under the asymmetric ring-to-electrode interface configuration. This circular current induces a finite magnetic field at the center of the ring. Herein, this phenomenon is utilized to construct a spin halfadder. The circular current-induced magnetic field is used to regulate the alignments of local free spins; by … Show more
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