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- Title
Anomalous anisotropic behaviour of spin-triplet proximity effect in Au/SrRuO<sub>3</sub>/Sr<sub>2</sub>RuO<sub>4</sub> junctions.
- Authors
Anwar, M. S.; Kunieda, M.; Ishiguro, R.; Lee, S. R.; Sow, C.; Robinson, J. W. A.; Yonezawa, S.; Noh, T. W.; Maeno, Y.
- Abstract
Spin-polarized supercurrents can be generated with magnetic inhomogeneity at a ferromagnet/spin-singlet-superconductor interface. In such systems, complex magnetic inhomogeneity makes it difficult to functionalise the spin-polarized supercurrents. However, spin-polarized supercurrents in ferromagnet/spin-triplet-superconductor junctions can be controlled by the angle between magnetization and spin of Copper pairs (d-vector), that can effectively be utilized in developing of a field of research known as superconducting spintronics. Recently, we found induction of spin-triplet correlation into a ferromagnet SrRuO3 epitaxially deposited on a spin-triplet superconductor Sr2RuO4, without any electronic spin-flip scattering. Here, we present systematic magnetic field dependence of the proximity effect in Au/SrRuO3/Sr2RuO4 junctions. It is found that induced triplet correlations exhibit strongly anisotropic field response. Such behaviour is attributed to the rotation of the d-vector of Sr2RuO4. This anisotropic behaviour is in contrast with the vortex dynamic. Our results will stimulate study of interaction between ferromagnetism and unconventional superconductivity.
- Subjects
SPIN-polarized currents; FERROMAGNETISM; STRONTIUM compounds; SUPERCONDUCTORS; SPINTRONICS
- Publication
Scientific Reports, 2019, Vol 9, Issue 1, pN.PAG
- ISSN
2045-2322
- Publication type
Article
- DOI
10.1038/s41598-019-52003-0