Even-odd flux quanta effect in the Fraunhofer oscillations of an edge-channel Josephson junction
B. Baxevanis, V. P. Ostroukh, C. W. J. Beenakker
DOI 10.1103/PhysRevB.91.041409 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
We calculate the beating of h/2e and h/e periodic oscillations of the flux-dependent critical supercurrent Ic(Φ) through a quantum spin-Hall insulator between two superconducting electrodes. A conducting pathway along the superconductor connects the helical edge channels via a nonhelical channel, allowing an electron incident on the superconductor along one edge to be Andreev reflected along the opposite edge. In the limit of small Andreev reflection probability the resulting even-odd effect is described by Ic∝|cos(eΦ/ℏ)+f|, with |f|≪1 proportional to the probability for phase-coherent interedge transmission. Because the sign of f depends on microscopic details, a sample-dependent inversion of the alternation of large and small peaks is a distinctive feature of the beating mechanism for the even-odd effect.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Ti/Al Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Even-odd flux quanta effect in the Fraunhofer oscillations of an edge-channel Josephson junction
similarity 0.94B. Baxevanis et al. · 2014 · arXiv:1411.6638
Source status unknown — claims are unverified
Flux-tunable Josephson effect in a four-terminal junction
similarity 0.91Christian G. Prosko et al.
Source status unknown — claims are unverified
Dynamical Polarization of the Fermion Parity in a Nanowire Josephson Junction
similarity 0.91J. J. Wesdorp et al.
Source status unknown — claims are unverified
Measurements of Phase Dynamics in Planar Josephson Junctions and SQUIDs
similarity 0.91D. Z. Haxell et al.
Source status unknown — claims are unverified
Phase Signature of Topological Transition in Josephson Junctions
similarity 0.90Matthieu C. Dartiailh et al.
Source status unknown — claims are unverified
Anomalous modulation of Josephson radiation in nanowire-based Josephson junctions
similarity 0.90H. Kamata et al.
Source status unknown — claims are unverified