Josephson magnetic rotary valve

Abstract

We propose a control element for a Josephson spin valve. It is a complex Josephson device containing ferromagnetic (F) layer in the weak-link area consisting of two regions, representing $0$ and $\pi$ Josephson junctions, respectively. The valve's state is defined by mutual orientations of the F-layer magnetization vector and normal to the interface separating $0$ and $\pi$ sections of the device. We consider possible implementation of the control element by introduction of a thin normal metal layer in a part of the device area. By means of theoretical simulations we study properties of the valve's structure as well as its operation, revealing such advantages as simplicity of control, high characteristic frequency and good legibility of the basic states.

arXiv comment5 pages, 4 figures, accepted to publication in Appl. Phys. Lett

References in corpus (14)

• Odd Triplet Superconductivity and Related Phenomena in Superconductor-Ferromagnet Structures
• Hybrid superconducting-magnetic memory device using competing order parameters
• Periodic alternating $0,\pi$-junction structures as realization of $\varphi$-Josephson junctions
• Controllable Josephson current through a pseudo-spin-valve structure
• Memory cell based on a $\phi$ Josephson junction
• Static and dynamic properties of 0, pi, and 0-pi ferromagnetic tunnel Josephson Junctions
• Theoretical Model of Superconducting Spintronic SIsFS Devices
• Magnetic interference patterns in 0-Pi SIFS Josephson junctions: effects of asymmetry between 0 and Pi regions
• Theory of supercurrent transport in SIsFS Josephson junctions
• Spin Controlled Coexistence of 0 and π States in SFSFS Josephson Junctions
• Josephson magnetic rotary valve
• Observation of the magnetic domain structures in Cu${}_{0,47}$Ni${}_{0,53}$ thin films at low temperatures
• Low-T_c Josephson junctions with tailored barrier
• Critical current diffraction pattern of SIFS Josephson junctions with step-like F-layer

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• The effect of normal metal layers in ferromagnetic Josephson junctions