234 citations · 521 across the 13 of their papers we have counts for
12 papers · 1 filter
Coherent beam splitting of flying electrons driven by a surface acoustic wave
R. Ito, S. Takada, A. Ludwig +3
We develop a coherent beam splitter for single electrons driven through two tunnel-coupled quantum wires by surface acoustic waves (SAWs). The output current through each wire osci…
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…
Mesoscopic phase behavior in a quantum dot around crossover between single-level and multilevel transport regimes
S. Takada, M. Yamamoto, C. Bäuerle +3
The transmission phase across a quantum dot (QD) is expected to show mesoscopic behavior, where the appearance of a phase lapse between Coulomb peaks (CPs) as a function of the gat…
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…
Supercurrent in the quantum Hall regime
Francois Amet, Chung Ting Ke, Ivan V. Borzenets +8
A novel promising route for creating topological states and excitations is to combine superconductivity and the quantum Hall (QH) effect. Despite this potential, signatures of supe…
Measurement of the Transmission Phase of an Electron in a Quantum Two-Path Interferometer
S. Takada, M. Yamamoto, C. Bäuerle +4
A quantum two-path interferometer allows for direct measurement of the transmission phase shift of an electron, providing useful information on coherent scattering problems. In mes…
Electronic transport properties of few-layer graphene materials
S. Russo, M. F. Craciun, T. Khodkov +3
Since the discovery of graphene -a single layer of carbon atoms arranged in a honeycomb lattice - it was clear that this truly is a unique material system with an unprecedented com…
Proposal for a magnetic field induced graphene dot
P. A. Maksym, M. Roy, M. F. Craciun +3
Quantum dots induced by a strong magnetic field applied to a single layer of graphene in the perpendicular direction are investigated. The dot is defined by a model potential which…
Double-gated graphene-based devices
S. Russo, M. F. Craciun, M. Yamamoto +2
We discuss transport through double gated single and few layer graphene devices. This kind of device configuration has been used to investigate the modulation of the energy band st…
Spin polarization in a T-shape conductor induced by strong Rashba spin-orbit coupling
M. Yamamoto, T. Ohtsuki, B. Kramer
We investigate numerically the spin polarization of the current in the presence of Rashba spin-orbit interaction in a T-shaped conductor proposed by A.A. Kiselev and K.W. Kim (Appl…
Conductance fluctuations in the presence of spin scattering
J. Ohe, M. Yamamoto, T. Ohtsuki
Electron transport through disordered systems that include spin scatterers is studied numerically. We consider three kinds of magnetic impurities: the Ising, the XY and the Heisenb…