6 papers
Microwave Response of the Superconducting Diode Effect in Proximitized Bilayer Graphene Interferometers
Shili Yan, Rubén Seoane Souto, Yi Luo +7
Microwave irradiation has emerged as a promising means to tune the superconducting diode effect (SDE) in Josephson junction devices. Previous experimental studies have mainly focus…
Spin splitting, Kondo correlation and singlet-doublet quantum phase transition in a superconductor-coupled InSb nanosheet quantum dot
Xingjun Wu, Ji-Yin Wang, Haitian Su +6
We realize a superconductor-coupled quantum dot (QD) in an InSb nanosheet, a 2D platform promising for studies of topological superconductivity. The device consists of a supercondu…
Supercurrent and multiple Andreev reflections in Ge hut nanowire Josephson Junctions
Han Gao, Jian-Huan Wang, Ji-Yin Wang +2
We report an experimental study of induced superconductivity in Ge hut nanowire Josephson junctions. The Ge hut nanowires are grown on prepatterned SiGe ridges via molecular beam e…
Ubiquitous missing first Shapiro step in Al-InSb nanosheet Josephson junctions
Xingjun Wu, Haitian Su, Chuanchang Zeng +6
The absence of odd-order Shapiro steps is a predicted signature of topological superconductors. Experimentally, the missing first-order Shapiro step has been reported in both putat…
Gate Tunable Josephson Diode Effect in Josephson Junctions made from InAs Nanosheets
Shili Yan, Yi Luo, Haitian Su +6
We report the observation of Josephson diode effect (JDE) in hybrid devices made from semiconductor InAs nanosheets and superconductor Al contacts. By applying an in-plane magnetic…
Tunable superconducting diode effect in higher-harmonic InSb nanosheet interferometers
Xingjun Wu, Ji-Yin Wang, Haitian Su +5
Superconducting diodes, characterized by the nonreciprocal supercurrent flow, have gained significant attention for their potential in dissipationless electronics. This study prese…