Controllable pi junction with magnetic nanostructures

Abstract

We propose a novel Josephson device in which 0 and $\pi$ states are controlled by an electrical current. In this system, the $\pi$ state appears in a superconductor/normal metal/superconductor junction due to the non-local spin accumulation in the normal metal which is induced by spin injection from a ferromagnetic electrode. Our proposal offers not only new possibilities for application of superconducting spin-electronic devices but also the in-depth understanding of the spin-dependent phenomena in magnetic nanostructures.

4 pages, 3 figures

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Cited by in corpus (4)

• Phase Controllable Josephson Junctions for Cryogenic Memory
• 0-pi oscillations in nanostructured Nb/Fe/Nb Josephson junctions
• Tunable planar Josephson junctions driven by time-dependent spin-orbit coupling
• Electrical Characteristics of Superconducting-Ferromagnetic Transistors