Direct observation of josephson vortex cores
WebDec 4, 2024 · Figure 1:Bardeen-Cooper-Schrieffer theory predicts that vortex states are formed in conventional type-II superconductors in a magnetic field. Renner and co-workers have observed such states in the … WebSep 1, 2024 · Direct observation of terahertz electromagnetic waves emitted from intrinsic Josephson junctions in single crystalline Bi 2 Sr 2 CaCu 2 O 8+ ... Direct observation of Josephson vortex cores. Nat. Phys., 11 (2015), pp. 332-337. CrossRef View in Scopus Google Scholar [12]
Direct observation of josephson vortex cores
Did you know?
WebDec 9, 2016 · Roditchev, D. et al. Direct observation of Josephson vortex cores. Nat. Phys. 11, 332–337 (2015). Article CAS Google Scholar ... WebIn much more anisotropic BSCCO direct observation of Josephson vortices is not possible. However, when the magnetic field tilted at small angles with respect to the layers, the c-axis field component generates the pancake-vortex stacks which preferably enter the superconductor along the Josephson vortices forming chains.
WebJosephson vortices are circulating supercurrents with an inner structure that is challenging to probe experimentally. Scanning tunnelling microscopy now shows that such vortices contain non-superconducting cores. WebFIG. 1. Observation of dynamic Josephson vortex signatures by MFM. (a) Topographic image of a planar Nb/Cu/Nb junction. (b)– (d) MFM phase maps at different applied out-of-plane magnetic fields. The scan area is 4.3×4.3 μm2. Specific MFM responses associated with Josephson vortices appear as arcs and rings in the phase maps.
WebJul 1, 2024 · The crucial feature of an optical vortex is that it carries the orbital angular momentum ( l ħ per photon), and has attracted growing attentions in the past years, thanks to the wide applications in optical tweezers [12], optical trapping [13], imaging [14], and information processing [15], [16]. WebFIG. 1. Observation of dynamic Josephson vortex signatures by MFM. (a) Topographic image of a planar Nb/Cu/Nb junction. (b)– (d) MFM phase maps at different applied out …
WebSuperconducting correlations may propagate between two superconductors separated by a tiny insulating or metallic barrier, allowing a dissipationless electric current to flow(1,2). In the presence of a magnetic field, the maximum supercurrent oscillates(3) and each oscillation corresponding to the entry of one Josephson vortex into the barrier(4). Josephson …
WebThe Josephson vortex cores appear as regions where the proximity gap is locally suppressed and the normal state is recovered 8 . We demonstrate that the Josephson … hide original activation buttonsWebIn the presence of a magnetic field, the maximum supercurrent oscillates(3) and each oscillation corresponding to the entry of one Josephson vortex into the barrier(4). Josephson vortices are conceptual blocks of advanced quantum devices such as coherent terahertz generators(5) or qubits for quantum computing(6), in which on-demand … hide option tableau filterWebSep 5, 2024 · Josephson vortices play an essential role in superconducting quantum electronics devices. Often seen as purely conceptual topological objects, 2π-phase singularities, their observation and ... hide optionsWebJosephson vortex cores are in the normal state, as predicted7. The interpretation of our observation in terms of Josephson vortex cores is fully corroborated by the numerical … how expensive is solar energyWebJosephson vortex , Physics, Science, Physics ... The cores of Josephson vortices are more complex and depend on the physical nature of the barrier. ... Lise; Cuevas, Juan Carlos; Bessa, Vagner Henrique Loiola; et al. (2015-02-23). "Direct observation of Josephson vortex cores". Nature Physics. Springer Science and Business Media LLC. … hide or lowerWebFeb 2, 1991 · We report a detailed study of the S doping effect on the critical current density, J c, and vortex pinning in FeSe single crystal.The value of J c for FeSe is found to be enhanced from ∼4 × 10 4 A/cm 2 at 2 K under self-field to ∼6 × 10 4 A/cm 2 after S doping. Similar field decaying rates of J c and the absence of fishtail effect in both FeSe and … hide or hunt rulesWebJul 20, 2024 · Roditchev, D. et al. Direct observation of Josephson vortex cores. Nat. Phys. 11, 332–337 (2015). Article CAS Google Scholar ... how expensive is spotify premium