108 citations · 458 across the 14 of their papers we have counts for
14 papers
Noise-induced stabilization of dynamical states with broken time-reversal symmetry
Trevyn F. Q. Larson, Lingfei Zhao, Ethan G. Arnault +7
Under a high frequency drive, Josephson junctions demonstrate "Shapiro steps" of quantized voltage. These are dynamically stabilized states, in which the phase across the junction…
Graphene-based quantum Hall interferometer with self-aligned side gates
Lingfei Zhao, Ethan G. Arnault, Trevyn F. Q. Larson +7
The vanishing band gap of graphene has long presented challenges for making high-quality quantum point contacts (QPCs) -- the partially transparent p-n interfaces introduced by con…
One-Dimensional Edge Contact to Encapsulated MoS2 with a Superconductor
A. Seredinski, E. G. Arnault, V. Z. Costa +7
Establishing ohmic contact to van der Waals semiconductors such as MoS2 is crucial to unlocking their full potential in next-generation electronic devices. Encapsulation of few lay…
Overdamped Phase Diffusion in hBN Encapsulated Graphene Josephson Junctions
J. Tang, M. T. Wei, A. Sharma +7
We investigate the zero-bias behavior of Josephson junctions made of encapsulated graphene boron nitride heterostructures in the long ballistic junction regime. For temperatures do…
The Multi-terminal Inverse AC Josephson Effect
Ethan G. Arnault, Trevyn Larson, Andrew Seredinski +8
When a Josephson junction is exposed to microwave radiation, it undergoes the inverse AC Josephson effect - the phase of the junction locks to the drive frequency. As a result, the…
Zero-bias crossings and peculiar Shapiro maps in graphene Josephson junctions
T. F. Q. Larson, L. Zhao, E. G. Arnault +7
The AC Josephson effect manifests itself in the form of "Shapiro steps" of quantized voltage in Josephson junctions subject to RF radiation. This effect presents an early example o…
Interference of chiral Andreev edge states
Lingfei Zhao, Ethan G. Arnault, Alexey Bondarev +9
The search for topological excitations such as Majorana fermions has spurred interest in the boundaries between distinct quantum states. Here, we explore an interface between two p…
2-periodic magnetic interference in ballistic graphene Josephson junctions
C. T. Ke, A. W. Draelos, A. Seredinski +11
We investigate supercurrent interference patterns measured as a function of magnetic field in ballistic graphene Josephson junctions. At high doping, the expected -periodic…
Chiral Quasiparticle Tunneling Between Quantum Hall Edges in Proximity with a Superconductor
M. T. Wei, A. W. Draelos, A. Seredinski +10
We study a two-terminal graphene Josephson junction with contacts shaped to form a narrow constriction, less than 100nm in length. The contacts are made from type II superconductin…
Full control of quantum Hall supercurrent in a side gated graphene Josephson junction
Andrew Seredinski, Anne W. Draelos, Ethan G. Arnault +6
We present a study of a graphene-based Josephson junction with dedicated side gates carved from the same sheet of graphene as the junction itself. These side gates are highly effic…
Supercurrent Flow in Multi-Terminal Graphene Josephson Junctions
Anne W. Draelos, Ming-Tso Wei, Andrew Seredinski +7
We investigate the electronic properties of ballistic planar Josephson junctions with multiple superconducting terminals. Our devices consist of monolayer graphene encapsulated in…
Supercurrent in Graphene Josephson Junctions with Narrow Trenches in the Quantum Hall Regime
Andrew Seredinski, Anne Draelos, Ming-Tso Wei +12
Coupling superconductors to quantum Hall edge states is the subject of intense investigation as part of the ongoing search for non-abelian excitations. Our group has previously obs…
Investigation of Supercurrent in the Quantum Hall Regime in Graphene Josephson Junctions
Anne W. Draelos, Ming Tso Wei, Andrew Seredinski +10
In this study, we examine multiple encapsulated graphene Josephson junctions to determine which mechanisms may be responsible for the supercurrent observed in the quantum Hall (QH)…
Ballistic graphene Josephson junctions from the short to the long regime
I. V. Borzenets, F. Amet, C. T. Ke +9
We investigate the critical current, , of ballistic Josephson junctions made of encapsulated graphene/boron-nitride heterostructures. We observe a crossover from the short to…