Spin pumping in d-wave superconductor/ferromagnet hybrids
arXiv:2009.03196 · doi:10.1103/PhysRevB.104.144428
Abstract
Spin-pumping across ferromagnet/superconductor (F/S) interfaces has attracted much attention lately. Yet the focus has been mainly on s-wave superconductors-based systems whereas (high-temperature) d-wave superconductors such as YBa2Cu3O7-d (YBCO) have received scarce attention despite their fundamental and technological interest. Here we use wideband ferromagnetic resonance to study spin-pumping effects in bilayers that combine a soft metallic Ni80Fe20 (Py) ferromagnet and YBCO. We evaluate the spin conductance in YBCO by analyzing the magnetization dynamics in Py. We find that the Gilbert damping exhibits a drastic drop as the heterostructures are cooled across the normal-superconducting transition and then, depending on the S/F interface morphology, either stays constant or shows a strong upturn. This unique behavior is explained considering quasiparticle density of states at the YBCO surface, and is a direct consequence of zero-gap nodes for particular directions in the momentum space. Besides showing the fingerprint of d-wave superconductivity in spin-pumping, our results demonstrate the potential of high-temperature superconductors for fine tuning of the magnetization dynamics in ferromagnets using k-space degrees of freedom of d-wave/F interfaces.
arXiv comment20 pages, 6 figures
References in corpus (28)
- Odd Triplet Superconductivity and Related Phenomena in Superconductor-Ferromagnet Structures
- Superconducting Spintronics
- Long-range effects in superconductor-ferromagnet structures
- Spin-polarized supercurrents for spintronics: a review of current progress
- Spin Injection and Detection in Magnetic Nanostructures
- Temperature dependence of spin diffusion length and spin Hall angle in Au and Pt
- Quantum Spin Fluctuations as a Source of Long-Range Proximity Effects in Diffusive Ferromagnet-Superconductor Structures
- Ferromagnetic/superconducting proximity effect in La0.7Ca0.3MnO3 / YBa2Cu3O7 superlattices
- Colloquium: Nonequilibrium effects in superconductors with a spin-splitting field
- Spin-Imbalance and Magnetoresistance in Ferromagnet/Superconductor/Ferromagnet Double Tunnel Junctions
- Angular position of nodes in the superconducting gap of YBCO
- Spin Imbalance and Spin-Charge Separation in a Mesoscopic Superconductor
- Extremely long quasiparticle spin lifetimes in superconducting aluminium using MgO tunnel spin injectors
- Ferromagnetic/superconducting bilayer structure: A model system for spin diffusion length estimation
- Spin dynamics in a superconductor / ferromagnet proximity system
- Thermal, electric and spin transport in superconductor/ferromagnetic-insulator structures
- Ferromagnetic Josephson junction with precessing magnetization
- Spin injection and relaxation in a mesoscopic superconductor
- Point-Contact Spectroscopy of the Heavy-Fermion Superconductor CeCoIn
- Spin pumping into superconductors: A new probe of spin dynamics in a superconducting thin film
- Effect of Meissner screening and trapped magnetic flux on magnetization dynamics in thick Nb/Ni80Fe20/Nb trilayers
- Probe of Spin Dynamics in Superconducting NbN Thin Films via Spin Pumping
- The interplay of large two-magnon ferromagnetic resonance linewidths and low Gilbert damping in Heusler thin films
- Tuning odd triplet superconductivity by spin pumping
- Abrikosov vortex nucleation and its detrimental effect on superconducting spin pumping in Pt/Nb/Ni80Fe20/Nb/Pt proximity structures
- Temperature-dependent spin-transport and current-induced torques in superconductor/ferromagnet heterostructures
- Large enhancement of spin pumping due to the surface bound states in normal metal/superconductor structures
- Domain - wall - induced magnetoresistance in pseudo spin-valve/superconductor hybrid structures
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- Anisotropic spin-current spectroscopy of ferromagnetic superconducting gap symmetries
- Spin Pumping into two-dimensional systems