Noah L. Samuelson
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View article: Hard and soft phase slips in a Fabry-Pérot quantum Hall interferometer
Hard and soft phase slips in a Fabry-Pérot quantum Hall interferometer Open
Quantum Hall Fabry-Pérot interferometers are sensitive to the properties of bulk quasiparticles enclosed by the interferometer loop, with the interference phase containing information about both the quasiparticle statistics and the Coulomb…
View article: Nanoscale infrared and microwave imaging of stacking faults in multilayer graphene
Nanoscale infrared and microwave imaging of stacking faults in multilayer graphene Open
Graphite occurs in a range of metastable stacking orders characterized by both the number and direction of shifts between adjacent layers by the length of a single carbon-carbon bond. At the extremes are Bernal (or ``ABAB...'') stacking, w…
View article: Enhanced shot noise in graphene quantum point contacts with electrostatic reconstruction
Enhanced shot noise in graphene quantum point contacts with electrostatic reconstruction Open
Shot noise measurements in quantum point contacts are a powerful tool to investigate charge transport in the integer and fractional quantum Hall regime, in particular to unveil the charge, quantum statistics and tunneling dynamics of edge …
View article: Spontaneous Localization at a Potential Saddle Point from Edge State Reconstruction in a Quantum Hall Point Contact
Spontaneous Localization at a Potential Saddle Point from Edge State Reconstruction in a Quantum Hall Point Contact Open
Quantum point contacts (QPCs) are an essential component in mesoscopic devices. Here, we study the transmission of quantum Hall edge modes through a gate-defined QPC in monolayer graphene. We observe resonant tunneling peaks and a nonlinea…
View article: Slow quasiparticle dynamics and anyonic statistics in a fractional quantum Hall Fabry-Pérot interferometer
Slow quasiparticle dynamics and anyonic statistics in a fractional quantum Hall Fabry-Pérot interferometer Open
Anyons are particles with fractional exchange statistics that emerge as elementary excitations of fractional quantum Hall phases. Experimentally, their exchange statistics can be measured in the edge-state Fabry-Pérot interferometer. In th…
View article: Spontaneous localization at a potential saddle point from edge state reconstruction in a quantum Hall point contact
Spontaneous localization at a potential saddle point from edge state reconstruction in a quantum Hall point contact Open
Quantum point contacts (QPCs) are an essential component in mesoscopic devices. Here, we study the transmission of quantum Hall edge modes through a gate-defined QPC in monolayer graphene. We observe resonant tunneling peaks and a nonlinea…
View article: Nanoscale electrostatic control in ultra clean van der Waals heterostructures by local anodic oxidation of graphite gates - Data and Analysis Code
Nanoscale electrostatic control in ultra clean van der Waals heterostructures by local anodic oxidation of graphite gates - Data and Analysis Code Open
Raw data sets and analysis code to accompany the manuscript titled "Nanoscale electrostatic control in ultra clean van der Waals heterostructures by local anodic oxidation of graphite gates," to appear in Nature Physics.
View article: Universal chiral Luttinger liquid behavior in a graphene fractional quantum Hall point contact
Universal chiral Luttinger liquid behavior in a graphene fractional quantum Hall point contact Open
One dimensional conductors are described by Luttinger liquid theory, which predicts a power-law suppression of the density of states near the Fermi level. The scaling exponent is non-universal in the general case, but is predicted to be qu…
View article: Universal chiral Luttinger liquid behavior in a graphene fractional quantum Hall point contact
Universal chiral Luttinger liquid behavior in a graphene fractional quantum Hall point contact Open
Raw source data for manuscript Data analysis code for processing raw data
View article: Universal chiral Luttinger liquid behavior in a graphene fractional quantum Hall point contact
Universal chiral Luttinger liquid behavior in a graphene fractional quantum Hall point contact Open
Raw source data for manuscript Data analysis code for processing raw data
View article: Nanoscale electrostatic control in ultra clean van der Waals heterostructures by local anodic oxidation of graphite gates
Nanoscale electrostatic control in ultra clean van der Waals heterostructures by local anodic oxidation of graphite gates Open
In an all-van der Waals heterostructure, the active layer, gate dielectrics and gate electrodes are assembled from two-dimensional crystals that have a low density of atomic defects. This design allows two-dimensional electron systems with…
View article: Proximity-Induced Superconductivity in Monolayer MoS<sub>2</sub>
Proximity-Induced Superconductivity in Monolayer MoS<sub>2</sub> Open
Proximity effects in superconducting normal (SN) material heterostructures with metals and semiconductors have long been observed and theoretically described in terms of Cooper pair wave functions and Andreev reflections. Whereas the semic…
View article: Development of Hybrid Superconducting Photocathodes on Niobium Using High QE Coatings
Development of Hybrid Superconducting Photocathodes on Niobium Using High QE Coatings Open
High power, low emittance electron beams require superconducting RF photoinjectors, typically made of pure Nb, and a superconducting photocathode is desired. However, superconductivity and high photocathode quantum efficiency (QE) are not …