Zobrazeno 1 - 10
of 65
pro vyhledávání: '"J.-P. Maneval"'
Autor:
Khalil Harrabi, J. P. Maneval
Publikováno v:
IEEE Transactions on Applied Superconductivity. 27:1-4
We have measured in superconducting niobium filaments the delay time $\text{t}_{d}$ that separates the initiation of a pulse of overcritical current $(\text{I} > \text{I}_{c})$ from its first resistive response. The experiments were performed at vari
Publikováno v:
Journal of Superconductivity and Novel Magnetism. 30:1349-1352
We have investigated the voltage response of superconducting NbTiN strips to a step-pulse of overcritical current in the range of temperatures 0.4 < T/T c < 0.9, where the critical temperature, T c , is 8.7 K. The current-induced destruction of the C
Publikováno v:
IEEE Transactions on Applied Superconductivity. 26:1-4
We have observed the voltage response of superconducting niobium strips to overcritical $(I > I_{c})$ step pulses of electrical current. The resistive response appears after a certain delay time $t_{d}$ function of the temperature and of the ratio $I
Autor:
Golibjon Berdiyorov, J. P. Maneval, A. I. Mansour, Khalil Harrabi, Kh. A. Ziq, A. F. Salem, Shankar Kunwar
Publikováno v:
Applied Physics A. 117:2033-2036
For over a decade, ultrathin superconducting films have been developed for the detection of single photons at optical or near infrared frequencies, with competitive performances in terms of quantum efficiency, speed, and low dark count rate. In order
Publikováno v:
Journal of Applied Physics. 123:083901
We have studied the voltage response of superconducting NbTiN filaments to a step-pulse of over-critical current I > Ic. The current induces the destruction of the Cooper pairs and initiates different mechanisms of dissipation depending on the bath t
Autor:
J.-C. Villégier, R.W. Bland, Vu Dinh Lam, Khalil Harrabi, F. R. Ladan, J.-P. Maneval, J.-F. Hamet
Publikováno v:
Journal of Low Temperature Physics. 157:36-56
Using a sequence of stepped bias currents in the nanosecond range, we have studied the destruction of superconductivity in c-axis textured YBa2Cu3O7 strips of various thickness and structure (single or multi-layers). Sufficiently far from Tc, vortex
Publikováno v:
Journal of Low Temperature Physics
Journal of Low Temperature Physics, Springer Verlag (Germany), 2008, 153, pp.103-122. ⟨10.1007/s10909-008-9821-7⟩
Journal of Low Temperature Physics, 2008, 153, pp.103-122. ⟨10.1007/s10909-008-9821-7⟩
Journal of Low Temperature Physics, Springer Verlag (Germany), 2008, 153, pp.103-122. ⟨10.1007/s10909-008-9821-7⟩
Journal of Low Temperature Physics, 2008, 153, pp.103-122. ⟨10.1007/s10909-008-9821-7⟩
International audience; By applying nanosecond current pulses to narrow superconducting Nb strips, we have observed the induced resistive states expected for quasi 1-D transport, namely localized phase-slip centres (PSC) and hot spots (HS). The curre
Publikováno v:
Journal of the Korean Physical Society. 52:1641-1644
The resistance induced by nanosecond pulses of electric currrent or of light has been studied in superconducting Nb and NbN thin films. Narrow bridges exhibit the features expected from quasi-1D transport, namely, localized phase-slip centers (PSC) a
Publikováno v:
Journal of the Korean Physical Society. 52:1652-1656
The resistive response of c-axis textured YBa2Cu3O7 bridges (100 nm thick and 10 µm wide) has been studied dynamically on the nanosecond scale over a wide span of temperatures and currents. From Tc down to 75 K, dissipation is dominated by the visco
Publikováno v:
Journal of Superconductivity: Incorporating Novel Magnetism. 15:421-424
Topological defects such as vortices subsist for some time in a rapidly frozen superconducting film (W. H. Zurek, Phys. Rep. 276, 177, 1996). We propose to use as a probe of the vortex density the finite delay T d , which, in narrow strips, exists be