Inverse proximity effect in superconductors near ferromagnetic material

Abstract

We study the electronic density of states in a mesoscopic superconductor near a transparent interface with a ferromagnetic metal. In our tunnel spectroscopy experiment, a substantial density of states is observed at sub-gap energies close to a ferromagnet. We compare our data with detailed calculations based on the Usadel equation, where the effect of the ferromagnet is treated as an effective boundary condition. We achieve an excellent agreement with theory when non-ideal quality of the interface is taken into account.

revised, 7 pages, 3 figures

References in corpus (1)

• Long-Range Coherence in a Mesoscopic Metal near a Superconducting Interface

Cited by in corpus (24)

• Evidence for crossed Andreev reflection in superconductor-ferromagnet hybrid structures
• Huge thermoelectric effects in ferromagnet-superconductor junctions in the presence of a spin-splitting field
• Supercurrent-carrying density of states in diffusive mesoscopic Josephson weak links
• Proximity effects and characteristic lengths in ferromagnet-superconductor structures
• Theory of superconducting and magnetic proximity effect in S$\mid$F structures with inhomogeneous magnetization textures and spin-active interfaces
• Probe of Spin Dynamics in Superconducting NbN Thin Films via Spin Pumping
• Experimental Observation of the Inverse Proximity Effect in Superconductor/Ferromagnet Layered Structures
• Josephson Currents and Spin Transfer Torques in Ballistic SFSFS Nanojunctions
• Proximity effect-assisted absorption of spin currents in superconductors
• Thermal conductance of a proximity superconductor
• Spin-orbit-proximitized ferromagnetic metal by monolayer transition metal dichalcogenide: Atlas of spectral functions, spin textures and spin-orbit torques in Co/MoSe${}_2$, Co/WSe${}_2$ and Co/TaSe${}_2$ heterostructures
• Superconducting proximity effects in metals with a repulsive pairing interaction
• Spin relaxation in mesoscopic superconducting Al wires
• Spin-Valve Effect of the Spin Accumulation Resistance in a Double Ferromagnet - Superconductor Junction
• FMR and voltage induced transport in normal metal-ferromagnet-superconductor trilayers
• Calorimetric readout of a superconducting proximity-effect thermometer
• Titanium single electron transistor fabricated by electron-beam lithography
• Suppression of the "quasiclassical" proximity gap in correlated-metal--superconductor structures
• Local Density of States and Order Parameter Configurations in Layered Ferromagnet-Superconductor Structures
• Random matrix theory of proximity effect in disordered wires
• The Superconducting Proximity Effect as a Tool to Investigate Metal Films and Interfaces
• Severe discrepancies between experiment and theory in the superconducting proximity effect
• Quantitative Simulation of the Superconducting Proximity Effect
• Dynamics of Bloch oscillating transistor near bifurcation threshold