3 papers
cond-mat.mes-hall2026
Andreev-enhanced conductance quantization and gate-tunable induced superconducting gap in germanium
Elyjah Kiyooka, Chotivut Tangchingchai, Gonzalo Troncoso Fernandez-Bada +8
Ge/SiGe quantum well heterostructures confining a high-mobility two-dimensional hole gas (2DHG) have emerged as a compelling platform for hybrid superconductor(S)-semiconductor(Sm)…
cond-mat.mes-hall2024
Gatemon qubit on a germanium quantum-well heterostructure
Elyjah Kiyooka, Chotivut Tangchingchai, Leo Noirot +9
Gatemons are superconducting qubits resembling transmons, with a gate-tunable semiconducting weak link as the Josephson element. Here, we report a gatemon device featuring an alumi…
cond-mat.mes-hall2024
Gate- and flux-tunable sin(2) Josephson element with proximitized Ge-based junctions
Axel Leblanc, Chotivut Tangchingchai, Zahra Sadre Momtaz +11
Hybrid superconductor-semiconductor Josephson field-effect transistors (JoFETs) function as Josephson junctions with a gate-tunable critical current. Additionally, they can feature…