Detecting magnetic proximity in structurally designed ferromagnetic-superconductor superlattices and ferromagnetic-semiconductor bilayers
The integration of ferromagnetic insulators (FMI) with semiconducting-superconducting (SE-SU) structures provides a generic platform for topological quantum computation, since no external field is required in the experimental setup. In these structures, the exchange coupling of FMI with SE-SU materials should provide the essential Zeeman energy to lift up the spin degeneracy. However, in our recent PNR experiments of these tri-layer EuS-InAs-Pb structures (proposal Id: 5-54-373), we have seen that it is difficult to detect the signatures of weak magnetic proximity effect. In this proposal, we have designed the superlattices and bilayer structures containing only one type of interface (either SE-FMI or SU-FMI), in which the sensitivity of the PNR measurement to detect the small magnetic proximity effect could be greatly enhanced by the structural design. The information acquired from these PNR measurements will allow quantification of the magnetic exchange at EuS/Pb and EuS/InAs interfaces, and precise modelling of more complicated tri-layer structures which will ultimately point towards experimental realization of real device structures.
The data is currently only available to download if you are a member of the proposal team.
The recommended format for citing this dataset in a research publication is in the following format:
LEFMANN Kim; DALAL Kamaldeep; LIU Yu; SAERBECK Thomas; STEINKE Nina-Juliane and https://doi.org/10.1103/PhysRevB.96.174421. (2023). Detecting magnetic proximity in structurally designed ferromagnetic-superconductor superlattices and ferromagnetic-semiconductor bilayers. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-54-384
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This data is not yet public
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