Observation of nondissipative quasiparticle tunnel currents in superconducting tunnel junctions
Qing Hu, C. A. Mears, P. L. Richards, F. L. Lloyd
DOI 10.1103/PhysRevLett.64.2945 · Physical Review Letters
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 have made the first direct measurement of the quantum susceptance which arises from the nondissipative part of the quasiparticle tunneling in a superconductor-insulator-superconductor (SIS) junction. The resonant frequency of a resonator which contains an SIS junction depends on the dc bias due to the bias dependence of the quantum susceptance. The observed 19% shift of the resonant frequency, form 73 to 87 GHz, is in excellent agreement with the Werthamer-Tucker theory. This quantum susceptance should exist in other devices such as quantum-well structures.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Nb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Quantum susceptance and its effects on the high-frequency response of superconducting tunnel junctions
similarity 0.97Qing Hu et al.
Source status unknown — claims are unverified
Macroscopic quantum tunneling and quasiparticle dissipation in d-wave superconductor Josephson junctions
similarity 0.96S. Kawabata et al.
Source status unknown — claims are unverified
Dynamical quantum phase transitions in a mesoscopic superconducting system
similarity 0.95K. Wrześniewski et al.
Source status unknown — claims are unverified
Observation of Photon-Assisted Noise in a Diffusive Normal Metal–Superconductor Junction
similarity 0.95A. A. Kozhevnikov et al.
Source status unknown — claims are unverified
Multiple 0−π transitions in superconductor/insulator/ferromagnet/superconductor Josephson tunnel junctions
similarity 0.95F. Born et al.
Source status unknown — claims are unverified
ac Long-Range Phase-Coherent Effects in Mesoscopic Superconductor–Normal Metal Structures
similarity 0.94Anatoly F. Volkov & Hideaki Takayanagi
Source status unknown — claims are unverified