activity
20232026
most citedGatemon qubit on a germanium quantum-well heterostructure

15 citations · 36 across the 6 of their papers we have counts for

collaborators

7 papers

cond-mat.mes-hall2026

Effect of Buried-Interface Preparation for Nb Superconducting Resonators on InP

Logan S. Kusher, Ding Peng, Zihua Zhu +14

Substrate surface preparation is a key step in the fabrication of electronic devices. In III--V semiconductor platforms, e.g. used in HEMTs and lasers, removal of the native substr…

cond-mat.mes-hall2026

Crystalline Germanium Josephson Junctions

Frederik H. Knudsen, Axel Leblanc, Yiliu Li +8

Conventional superconducting quantum electronics rely on well-established Josephson junctions made of Al/AlO where the weak link AlO is amorphous and is believed to hos…

cond-mat.supr-con2026

Interplay of superconductivity and ferromagnetism in ferromagnetic semiconductor-based Josephson junctions

Hirotaka Hara, Lukas Baker, Axel Leblanc +8

The interplay between superconductivity and ferromagnetism has long been pursued as a route to unconventional Josephson effects, yet suitable material platforms remain limited. Her…

cond-mat.mes-hall2024★ 15 cited

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★ 7 cited

Superconductivity in Substitutional Ga-Hyperdoped Ge Epitaxial Thin Films

Julian A. Steele, Patrick J. Strohbeen, Carla Verdi +12

Doping-induced superconductivity in group IV elements may enable quantum functionalities in material systems accessible with well-established semiconductor technologies. Non-equili…

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…

cond-mat.mes-hall2023★ 14 cited

From nonreciprocal to charge-4e supercurrents in Ge-based Josephson devices with tunable harmonic content

Axel Leblanc, Chotivut Tangchingchai, Zahra Sadre Momtaz +10

Hybrid superconductor(S)-semiconductor(Sm) devices bring a range of new functionalities into superconducting circuits. In particular, hybrid parity-protected qubits and Josephson d…