Inverse proximity effects at spin-triplet superconductor-ferromagnet interface
O. Maistrenko, C. Autieri, G. Livanas, P. Gentile, A. Romano, C. Noce, D. Manske, M. Cuoco
DOI 10.1103/PhysRevResearch.3.033008 · Physical Review Research
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Abstract
We investigate proximity effects in a spin-triplet superconductor (TSC) interfaced with a ferromagnet (FM), assuming different types of magnetic profiles and chiral or helical pairings. The region of the coexistence of spin-triplet superconductivity and magnetism is significantly influenced by the orientation and spatial extension of the magnetization with respect to the spin configuration of the Cooper pairs, resulting in clear-cut anisotropy signatures. A characteristic mark of the inverse proximity effect arises in the induced spin polarization at the TSC-FM interface. This is unexpectedly stronger when the magnetic proximity is weaker, thus unveiling immediate detection signatures for spin-triplet pairs. We show that an anomalous magnetic proximity can occur at the interface between the itinerant ferromagnet SrRuO3 and the unconventional superconductor Sr2RuO4. Such scenario indicates the potential to design characteristic inverse proximity effects in experimentally available SrRuO3−Sr2RuO4 heterostructures and to assess the occurrence of spin-triplet pairs in the highly debated superconducting phase of Sr2RuO4.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Sr2RuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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