Josephson Junctions and Cosmic Microwave Background
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Superconductivity and Novel Magnetism"
DOI: 10.1007/s10948-020-05731-8
Abstract: The implementation of utilizing superconducting quantum interference device (SQUID) readout for constant voltage biased transition edge sensors (TES) has enabled the detection of the infinitesimal fluctuation in cosmic microwave background (CMB). The properties of the… read more here.
Keywords: junctions cosmic; microwave background; cmb; josephson junctions ... See more keywords
van der Waals π Josephson Junctions.
Sign Up to like & getrecommendations! Published in 2022 at "Nano letters"
DOI: 10.1021/acs.nanolett.2c01640
Abstract: Proximity-induced superconductivity in a ferromagnet can induce Cooper pairs with a finite center-of-mass momentum and stabilize Josephson junctions (JJs) with π phase difference in superconductor-ferromagnet-superconductor heterostructures. The emergence of two-dimensional layered superconducting and magnetic materials… read more here.
Keywords: josephson junctions; superconductor; van der; der waals ... See more keywords
Dynamical Stabilization of Multiplet Supercurrents in Multiterminal Josephson Junctions.
Sign Up to like & getrecommendations! Published in 2022 at "Nano letters"
DOI: 10.1021/acs.nanolett.2c01999
Abstract: The dynamical properties of multiterminal Josephson junctions (MT-JJs) have attracted interest, driven by the promise of new insights into synthetic topological phases of matter and Floquet states. This effort has culminated in the discovery of… read more here.
Keywords: josephson junctions; dynamical stabilization; multiplet; multiterminal josephson ... See more keywords
Side Gate Tunable Josephson Junctions at the LaAlO3/SrTiO3 Interface
Sign Up to like & getrecommendations! Published in 2017 at "Nano Letters"
DOI: 10.1021/acs.nanolett.6b03820
Abstract: Novel physical phenomena arising at the interface of complex oxide heterostructures offer exciting opportunities for the development of future electronic devices. Using the prototypical LaAlO3/SrTiO3 interface as a model system, we employ a single-step lithographic… read more here.
Keywords: josephson; srtio3 interface; gate; josephson junctions ... See more keywords
Magnetic field compatible circuit quantum electrodynamics with graphene Josephson junctions
Sign Up to like & getrecommendations! Published in 2018 at "Nature Communications"
DOI: 10.1038/s41467-018-07124-x
Abstract: Circuit quantum electrodynamics has proven to be a powerful tool to probe mesoscopic effects in hybrid systems and is used in several quantum computing (QC) proposals that require a transmon qubit able to operate in… read more here.
Keywords: josephson junctions; graphene josephson; electrodynamics; spectroscopy ... See more keywords
Probing defect densities at the edges and inside Josephson junctions of superconducting qubits
Sign Up to like & getrecommendations! Published in 2022 at "npj Quantum Information"
DOI: 10.1038/s41534-022-00532-4
Abstract: Tunneling defects in disordered materials form spurious two-level systems which are a major source of decoherence for micro-fabricated quantum devices. For superconducting qubits, defects in tunnel barriers of submicrometer-sized Josephson junctions couple strongest to the… read more here.
Keywords: probing defect; defect densities; junction; superconducting qubits ... See more keywords
Exciton-polariton Josephson junctions at finite temperatures
Sign Up to like & getrecommendations! Published in 2017 at "Scientific Reports"
DOI: 10.1038/s41598-017-09824-8
Abstract: We consider finite temperature effects in a non-standard Bose-Hubbard model for an exciton- polariton Josephson junction (JJ) that is characterised by complicated potential energy landscapes (PEL) consisting of sets of barriers and wells. We show… read more here.
Keywords: josephson; josephson junctions; polariton; exciton polariton ... See more keywords
Joule overheating poisons the fractional ac Josephson effect in topological Josephson junctions
Sign Up to like & getrecommendations! Published in 2019 at "Communications Physics"
DOI: 10.1038/s42005-018-0100-x
Abstract: Topological Josephson junctions designed on the surface of a 3D-topological insulator harbor Majorana bound states among a continuum of conventional Andreev bound states. The distinct feature of these Majorana bound states lies in the 4π-periodicity… read more here.
Keywords: topological josephson; bound states; josephson; josephson junctions ... See more keywords
1/f critical current noise in short ballistic graphene Josephson junctions
Sign Up to like & getrecommendations! Published in 2019 at "Communications Physics"
DOI: 10.1038/s42005-019-0275-9
Abstract: Short ballistic graphene Josephson junctions sustain superconducting current with a non-sinusoidal current-phase relation up to a critical current threshold. The current-phase relation, arising from proximitized superconductivity, is gate-voltage tunable and exhibits peculiar skewness observed in… read more here.
Keywords: critical current; short ballistic; josephson junctions; graphene josephson ... See more keywords
RF assisted switching in magnetic Josephson junctions
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Applied Physics"
DOI: 10.1063/1.5018854
Abstract: We test the effect of an external RF field on the switching processes of magnetic Josephson junctions (MJJs) suitable for the realization of fast, scalable cryogenic memories compatible with Single Flux Quantum logic. We show… read more here.
Keywords: assisted switching; switching magnetic; magnetic josephson; josephson junctions ... See more keywords
Tutorial: High-speed low-power neuromorphic systems based on magnetic Josephson junctions
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Applied Physics"
DOI: 10.1063/1.5042425
Abstract: Josephson junctions and single flux quantum (SFQ) circuits form a natural neuromorphic technology with SFQ pulses and superconducting transmission lines simulating action potentials and axons. Josephson junctions consist of superconducting electrodes with nanoscale barriers that… read more here.
Keywords: josephson; across junction; magnetic josephson; josephson junctions ... See more keywords