6 papers
Pre-Patterned Superconducting Contacts for Clean Superconductor-Topological Material Interfaces Enabling Long-Range Josephson Coupling
Yong-Bin Choi, Chang-Won Choi, Luke Holtzman +8
Phase-coherent superconducting proximity in topological materials requires clean superconductor-topological material (SC-TM) interfaces, yet conventional top-contact fabrication of…
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…
Preserving Twist-Angle in Marginally Twisted Double-Bilayer Graphene Devices During Fabrication
Hyeon-Woo Jeong, Jiho Kim, Boknam Chae +3
Twisted van der Waals heterostructures provide a platform for studying a wide range of electron correlation phenomena, including unconventional superconductivity and correlated ins…
Edge dependece of nonlocal transport in gapped bilayer graphene
Hyeon-Woo Jeong, Seong Jang, Sein Park +3
The topological properties of gapped graphene have been explored for valleytronics applications. Prior transport experiments indicated their topological nature through large nonloc…
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…
Full tomography of topological Andreev bands in graphene Josephson junctions
Woochan Jung, Seyoung Jin, Sein Park +5
Multiply connected electronic networks threaded by flux tubes have been proposed as a platform for adiabatic quantum transport and topological states. Multi-terminal Josephson junc…