Granular aluminum induces a hard, magnetically resilient superconducting gap of 305 μeV in germanium, allowing Zeeman splitting of YSR states beyond 50 μeV and g-tensor tunability for hole-based hybrid quantum devices.
To connect the ZBW description with a realistic superconducting continuum, we integrate out the BCS lead and compare the resulting dot self-energy with its ZBW counterpart
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Granular aluminum induced superconductivity in germanium for hole spin-based hybrid devices
Granular aluminum induces a hard, magnetically resilient superconducting gap of 305 μeV in germanium, allowing Zeeman splitting of YSR states beyond 50 μeV and g-tensor tunability for hole-based hybrid quantum devices.