Anisotropic spin-current spectroscopy of ferromagnetic superconducting gap symmetries

Abstract

We develop a microscopic theory of tunneling spin transport at the magnetic interface between a ferromagnetic insulator and a ferromagnetic superconductor (FSC) driven by ferromagnetic resonance. We show that the spin susceptibilities of the FSC can be extracted from the spin currents by tuning the easy axis of the FSC, and thus the spin currents can be a probe for the symmetries of the spin-triplet Cooper pairing. Our results will offer a route to exploiting the synergy of magnetism and superconductivities for spin devices.

References in corpus (18)

• Superconductivity on the border of weak itinerant ferromagnetism in UCoGe
• Magnetic Topological Quantum Chemistry
• Review of U-based Ferromagnetic Superconductors: Comparison between UGe2, URhGe, and UCoGe
• Enhanced DC Spin Pumping into a Fluctuating Ferromagnet near Tc
• Nematic superconductivity in doped Bi2Se3 topological superconductors
• Spin dynamics in a superconductor / ferromagnet proximity system
• Spin-Triplet Superconductivity in K2Cr3As3
• Microscopic theory of spin transport at the interface between the superconductor and a ferromagnetic insulator
• Magnetization dynamics in proximity-coupled superconductor/ferromagnet/superconductor multilayers
• Finite-frequency spin susceptibility and spin pumping in superconductors with spin-orbit relaxation
• Abrikosov vortex nucleation and its detrimental effect on superconducting spin pumping in Pt/Nb/Ni80Fe20/Nb/Pt proximity structures
• Large enhancement of spin pumping due to the surface bound states in normal metal/superconductor structures
• Magnon spin current induced by triplet Cooper pair supercurrents
• Anisotropic superconducting spin transport at magnetic interfaces
• Spin pumping between noncollinear ferromagnetic insulators through thin superconductors
• Ferromagnetic resonance modulation in $d$-wave superconductor/ferromagnetic insulator bilayer systems
• Spin-pumping from a ferromagnetic insulator to an unconventional superconductor with interfacial Andreev bound-states
• Spin pumping in d-wave superconductor/ferromagnet hybrids

Cited by in corpus (3)

• Exploring ${}^3{P}_0$ Superfluid in Dilute Spin-Polarized Neutron Matter
• Spin Pumping into two-dimensional systems
• Spin pumping into quantum spin chains