0-pi Transitions in a Superconductor/Chiral Ferromagnet/Superconductor Junction induced by a Homogeneous Cycloidal Spiral

Abstract

We study the pi phase in a superconductor-ferromagnet-superconductor Josephson junction, with a ferromagnet showing a cycloidal spiral spin modulation with in-plane propagation vector. Our results reveal a high sensitivity of the junction to the spiral order and indicate the presence of 0-pi quantum phase transitions as function of the spiral wave vector. We find that the chiral magnetic order introduces chiral superconducting triplet pairs that strongly influence the physics in such Josephson junctions, with potential applications in nanoelectronics and spintronics.

4 pages, 4 figures; the derivation part has been reorganized + added note and new references, published version

References in corpus (12)

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Cited by in corpus (12)

• Surface bound states and spin currents in non-centrosymmetric superconductors
• Theory of superconducting and magnetic proximity effect in S$\mid$F structures with inhomogeneous magnetization textures and spin-active interfaces
• Unconventional Superconductivity in Double Quantum Dots
• Odd triplet superconductivity in superconductor-ferromagnet structures with a narrow domain wall
• Josephson current in diffusive multilayer superconductor/ferromagnet/superconductor junctions
• Proximity effect in ferromagnet/superconductor hybrids: from diffusive to ballistic motion
• Effective spin-flip scattering in diffusive superconducting proximity systems with magnetic disorder
• Strongly spin-polarized current generated in Zeeman-split unconventional superconductors
• Weak ferromagnetism linked to the high-temperature spiral phase of YBaCuFeO5
• Cascading Proximity Effects in Rotating Magnetizations
• Charge and Spin Supercurrents in Magnetic Josephson Junctions with Spin Filters and Domain Walls
• Spin-resolved Josephson diode effect through strongly spin-polarized conical magnets