3 papers
cond-mat.mes-hall2025
Edge dependence of the Josephson current in the quantum Hall regime
Seong Jang, Geon-Hyoung Park, Kenji Watanabe +2
The observation of Josephson current in the quantum Hall regime has attracted considerable attention, revealing the coexistence of two seemingly incompatible phases: the quantum Ha…
cond-mat.mes-hall2024
Engineering superconducting contacts transparent to a bipolar graphene
Seong Jang, Geon-Hyoung Park, Sein Park +4
Graphene's exceptional electronic mobility, gate-tunability, and contact transparency with superconducting materials make it ideal for exploring the superconducting proximity effec…
cond-mat.mes-hall2023
Controllable Andreev Bound States in Bilayer Graphene Josephson Junction from Short to Long Junction Limits
Geon-Hyoung Park, Wonjun Lee, Sein Park +4
We demonstrate that the mode number of Andreev bound states in bilayer graphene Josephson junctions can be modulated by in situ control of the superconducting coherence length. By…