Magnetic proximity in Superconducting Semiconductor
Topological materials are promising platforms for implementing quantum information unit by processing the quasiparticle excitations at the material boundaries. The key elements for topological quantum computation are the Majorana bound states (MBS) representing the zero energy state of superconducting particle-hole superposition, which is invariant under charge conjugation. In these systems, the Zeeman energy required to enter the topological phase is provided by an external magnetic field. However, the requirement of a strong external magnetic field imposes additional restrictions on the device fabrication layout and components. Therefore, it is of interest to integrate materials that are intrinsically topological. Composite tri-crystals using ferromagnetic insulators (FMI) in close proximity to the SE-SU structure have been proposed as a solution. Recently, we performed a polarized neutron reflectometry (PNR) experiment at D17 to investigate the magnetic proximity effect in a sample composed by InAs (substrate)/EuS/Pb. Here, we propose to continue characterization of this sample and the other sample of InAs (substrate)/EuS/InAs/Pb which has a superconducting semiconductor layer.
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:
KROGSTRUP Peter; BIRKEMOSE Soren; DALAL Kamaldeep; LEFMANN Kim; LIU Yu; LUCHINI Alessandra; SAERBECK Thomas; STEINKE Nina-Juliane and https://doi.org/10.1103/PhysRevB.96.174421. (2021). Magnetic proximity in Superconducting Semiconductor. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-54-373
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