Magnetic Flux Pumping in Superconducting Loop Containing a Josephson $\psi$ Junction

Abstract

We demonstrate that a Josephson junction with a half-metallic weak link integrated into the superconducting loop enables the pumping of magnetic flux piercing the loop. In such junctions, the ground state phase $\psi$ is determined by the mutual orientation of magnetic moments in two ferromagnets surrounding the half-metal. Thus, the precession of magnetic moment in one of two ferromagnets controlled, e.g., by the microwave radiation, results in the accumulation of the phase $\psi$ and subsequent switching between the states with different vorticities. The proposed flux pumping mechanism does not require the application of voltage or external magnetic field which enables the design of electrically decoupled memory cells in superconducting spintronics.

arXiv comment5 pages, 5 figures

References in corpus (39)

• Berry Phase Effects on Electronic Properties
• Quantum state engineering with Josephson-junction devices
• Proximity effects in superconductor-ferromagnet heterostructures
• Coupling of two superconductors through a ferromagnet : evidence for a pi-junction
• Superconducting Spintronics
• A Superconducting Persistent Current Qubit
• A spin triplet supercurrent through the half-metallic ferromagnet CrO2
• Spin-polarized supercurrents for spintronics: a review of current progress
• Observation of spin-triplet superconductivity in Co-based Josephson Junctions
• Direct coupling between magnetism and superconducting current in Josephson Phi junction
• Triplet supercurrents in clean and disordered half-metallic ferromagnets
• Josephson ${\phi }_0$-junction in nanowire quantum dots
• Implementation of superconductor-ferromagnet-superconductor pi-shifters in superconducting digital and quantum circuits
• Controllable 0-pi Josephson junctions containing a ferromagnetic spin valve
• Fully developed triplet proximity effect
• Anomalous Josephson Current in Junctions with Spin-Polarizing Quantum Point Contacts
• Symmetries of Pairing Correlations in Superconductor-Ferromagnet Nanostructures
• Anomalous Josephson current through a spin-orbit coupled quantum dot
• Magnetic moment manipulation by a Josephson current
• Spin-dependent Cooper Pair Phase and Pure Spin Supercurrents in Strongly Polarized Ferromagnets
• Spontaneous supercurrent induced by ferromagnetic pi-junctions
• General Boundary Conditions for Quasiclassical Theory of Superconductivity in the Diffusive Limit: Application to Strongly Spin-polarized Systems
• Magnetization reversal by superconducting current in ${\phi }_0$ Josephson junctions
• Peculiar properties of the Josephson junction at the transition from 0 to Pi state
• Triplet proximity effect in superconducting heterostructures with a half-metallic layer
• Spin-valve Josephson junctions for cryogenic memory
• Amplitude control of spin-triplet supercurrent in S/F/S Josephson junctions
• Interaction of a Nanomagnet with a Weak Superconducting Link
• Double path interference and magnetic oscillations in Cooper pair transport through a single nanowire
• Interaction of Josephson and magnetic oscillations in Josephson tunnel junctions with a ferromagnetic layer
• Spin torques and magnetic texture dynamics driven by the supercurrent in superconductor/ferromagnet structures
• Re-orientation of easy axis in ${\phi }_0$ junction
• Visualizing supercurrents in ferromagnetic Josephson junctions with various arrangements of 0 and πsegments
• A Josephson radiation comb generator
• Non-ideal artificial phase discontinuity in long Josephson 0-kappa-junctions
• Spin-triplet supercurrent in Josephson junctions containing a synthetic antiferromagnet with perpendicular magnetic anisotropy
• Effective model for a short Josephson junction with a phase discontinuity
• Nonlinear Dynamics in a Magnetic Josephson Junction
• Zero-Field Fiske Resonance Coupled with Spin-waves in Ferromagnetic Josephson Junctions

Cited by in corpus (4)

• Thermal noise effects on the magnetization switching of a ferromagnetic anomalous Josephson junction
• Switching current distributions in ferromagnetic anomalous Josephson junctions
• Collective magnetic and plasma excitations in Josephson $\psi$ junctions
• Signatures of Long-Range Spin-Triplet Component in Andreev Interferometer