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Updated: May 9, 2026

Optimized Fabrication Procedure for High-Quality Graphene-based Moiré Superlattice Devices
Published on: July 11, 2025
Spin-controlled superconductivity and tunable triplet correlations in graphene nanostructures
Klaus Halterman1, Oriol T Valls, Mohammad Alidoust
1Michelson Lab, Physics Division, Naval Air Warfare Center, China Lake, California 93555, USA. klaus.halterman@navy.mil
Abstract:
We study graphene ferromagnet/superconductor/ferromagnet (F/S/F) nanostructures via a microscopic self-consistent Dirac Bogoliubov-de Gennes formalism. We show that as a result of proximity effects, experimentally accessible spin switching phenomena can occur as one tunes the Fermi level μF of the F regions or varies the angle θ between exchange field orientations. Superconductivity can then be switched on and off by varying either θ or μF (a spin-controlled superconducting graphene switch). The induced equal-spin triplet correlations in S can be controlled by tuning μF, effectively making a graphene based two-dimensional spin-triplet valve.
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