Local analysis of a single impurity on a graphene Josephson Junction
arXiv:2407.20940 · doi:10.1103/PhysRevResearch.7.013189
Abstract
In this work, we investigate the local effects of a single short-range impurity on the electron system of a short ballistic graphene Josephson Junction. Within the Dirac-Bogoliubov-De Gennes approach, we systematically analyze the local density states, whose subgap energy dependence enables us to distinguish between elastic and inelastic scattering processes and identify the magnetic nature of the impurity. Furthermore, we observe that the spatial dependence of the local density of states is a sensitive probe of the microscopic processes resulting in subgap impurity-induced bound states. The Fourier analysis evidences the wavevectors related to the momenta of the high transmissive channels in ballistic graphene.
arXiv comment14 pages, 8 figure, 3 appendices
References in corpus (47)
- Boron nitride substrates for high-quality graphene electronics
- Non-Abelian Anyons and Topological Quantum Computation
- Micrometer-scale ballistic transport in encapsulated graphene at room temperature
- 1/f noise: implications for solid-state quantum information
- A Semiconductor Nanowire-Based Superconducting Qubit
- Resonant scattering by realistic impurities in graphene
- Two-dimensional epitaxial superconductor-semiconductor heterostructures: A platform for topological superconducting networks
- Josephson effect in ballistic graphene
- Realization of microwave quantum circuits using hybrid superconducting-semiconducting nanowire Josephson elements
- Ballistic Josephson junctions in edge-contacted graphene
- Modeling electronic structure and transport properties of graphene with resonant scattering centers
- Quantum oscillations of the critical current and high-field superconducting proximity in ballistic graphene
- Supercurrent in the quantum Hall regime
- Superconducting Gatemon Qubit based on a Proximitized Two-Dimensional Electron Gas
- Quantum coherent control of a hybrid superconducting circuit made with graphene-based van der Waals heterostructures
- Graphene-based Josephson junction microwave bolometer
- Bolometer operating at the threshold for circuit quantum electrodynamics
- Roadmap on quantum nanotechnologies
- Roadmap for gallium arsenide spin qubits
- Tunnelling Spectroscopy of Andreev States in Graphene
- Ballistic graphene Josephson junctions from the short to the long regime
- Relating Andreev Bound States and Supercurrents in Hybrid Josephson Junctions
- Josephson-junction infrared single-photon detector
- Transport properties of graphene across strain-induced nonuniform velocity profiles
- Steady Floquet-Andreev States Probed by Tunnelling Spectroscopy
- A graphene transmon operating at 1 T
- Supercurrent Spectroscopy of Andreev States
- A ballistic graphene superconducting microwave circuit
- Anharmonicity of a Gatemon Qubit with a Few-Mode Josephson Junction
- Visualization of phase-coherent electron interference in a ballistic graphene Josephson junction
- Nonequilibrium Josephson effect in mesoscopic ballistic multiterminal SNS junctions
- Miniaturizing transmon qubits using van der Waals materials
- Effect of impurities in high-symmetry lattice positions on the local density of states and conductivity of graphene
- Singular length dependence of critical current in SNS bridges
- Metal-insulator transition in hydrogenated graphene as manifestation of quasiparticle spectrum rearrangement of anomalous type
- Controlled DC Monitoring of a Superconducting Qubit
- Tunneling spectroscopy of graphene nanodevices coupled to large-gap superconductors
- 1/f critical current noise in short ballistic graphene Josephson junctions
- Effect of hydrogen adsorption on the quasiparticle spectra of graphene
- Direct measurement of a current phase relation in a graphene superconducting quantum interference device
- Effect of boron nitride defects and charge inhomogeneity on 1/f noise in encapsulated graphene
- Effect of dilute impurities on short graphene Josephson junctions
- Charge carrier density noise in graphene: effect of localized/delocalized traps
- Tuning the supercurrent distribution in parallel ballistic graphene Josephson junctions
- Andreev spin-noise detector
- Low-frequency critical current noise in graphene Josephson junctions in the open-circuit gate voltage limit
- Spin relaxation, Josephson effect and Yu-Shiba-Rusinov states in superconducting bilayer graphene