Delayed pulses from high-transparency Josephson junctions

Xu, Songtao; Mancini, C. A.; Feldman, M. J.
May 2001
Applied Physics Letters;5/14/2001, Vol. 78 Issue 20, p3100
Academic Journal
Calculations of the shape and the timing of single-magnetic-flux quanta (SFQs) generated by high-current-density "self-shunted" Josephson junctions are presented. The junction current is assumed to be due in part to multiple Andreev reflections within the high-transparency barrier. The SFQ pulses from these junctions show several differences when compared to those from lower-current-density resistively shunted Josephson junctions, the most important being that the pulses are significantly delayed in the self-shunted junctions, by as much as many times the pulse width. © 2001 American Institute of Physics.


Related Articles

  • Nonlocal Josephson electrodynamics of plates of finite thickness. Kuzovlev, Yu. E.; Lomtev, A. I. // Journal of Experimental & Theoretical Physics; 

    A nonlocal integrodifferentical equation describing the electrodynamics of a Josephson junction between superconductors of finite thickness in the direction of the magnetic field is derived. It is shown that the interaction of kinks always exhibits long-range power-law asymptotic behavior, which...

  • Decay of the running state in underdamped Josephson junctions. Cristiano, R.; Silvestrini, P. // Journal of Applied Physics;2/15/1986, Vol. 59 Issue 4, p1401 

    Presents information on a study which examined the effects of thermal noise on the dynamics of Josephson junctions. Langevin-like equation for Josephson junction in the RSJ model and in presence of thermal noise.

  • Numerical simulation of the oscillation line width in synchronous multi-element Josephson structures. Kornev, V. K.; Arzumanov, A. V. // Technical Physics Letters;Aug98, Vol. 24 Issue 8, p603 

    A method of simulating the dynamics of systems with Josephson junctions with allowance for thermal fluctuations is developed using the PSCAN program package followed by calculation of the Josephson oscillation spectrum using an autoregression method. An investigation is made of the synchronous...

  • Intrinsic Josephson junctions in oxygen-deficient YBa...Cu...O... film deposited on a substrate... Wang, H.B.; Chen, J. // Journal of Applied Physics;4/1/1999, Vol. 85 Issue 7, p3740 

    Discusses current-voltage curves, microwave response and magnetic-field dependence of intrinsic Josephson junctions properties in oxygen-deficient superconductors. Demonstration of intrinsic Josephson effects; Application of high-order microwave-induced Shapiro steps; Experimental results.

  • Hyperradiance from soliton oscillators synchronized by capacitive or inductive coupling. Gro\nbech-Jensen, Niels; Blackburn, James A. // Journal of Applied Physics;11/15/1993, Vol. 74 Issue 10, p6432 

    Presents a study which investigates the output power from coupled Josephson oscillators when junctions are operated in their single fluxon mode. Discussion on the synchronization of nonlinear oscillations; Equation governing coupled linear Josephson junctions; Plot of the power ratios as...

  • Influence of the idle region on the dynamic properties of window Josephson tunnel junctions. Monaco, R.; Costabile, G.; Martucciello, N. // Journal of Applied Physics;3/1/1995, Vol. 77 Issue 5, p2073 

    Focuses at the effects related to the presence of an idle region on the dynamic properties of window Josephson tunnel junctions. Mechanisms responsible for the observed effects; Measurement of the asymptotic voltage of the Fiske resonances; Models proposed to interpret the main features of the...

  • Resonance splitting in discrete planar arrays of Josephson junctions. Duwel, A. E.; Trías, E.; Orlando, T. P.; van der Zant, Herre S. J.; Watanabe, Shinya; Strogatz, Steven H. // Journal of Applied Physics;5/15/1996, Vol. 79 Issue 10, p7864 

    Focuses on a study which measured the dynamics of inductively coupled discrete arrays of niobium Josephson junctions. Samples; Measurement of arrays; Simulation and analysis.

  • Radiation detection from Fiske steps in Josephson junctions above 200 GHz. Cirillo, M.; Modena, I.; Santucci, F.; Carelli, P.; Castellano, M. G.; Leoni, R. // Journal of Applied Physics;6/15/1993, Vol. 73 Issue 12, p8637 

    Presents a study that measures the Josephson radiation emitted at millimeter-wave frequencies by a long Josephson junction dc-current biased on Fiske steps of the current-voltage characteristic. Differences between dynamic excitation generating Fiske steps and fluxon oscillations; Description...

  • LIFETIME OF METASTABLE STATES AND SUPPRESSION OF NOISE IN INTERDISCIPLINARY PHYSICAL MODELS. Spagnolo, B.; Dubkov, A. A.; Pankratov, A. L.; Pankratova, E. V.; Fiasconaro, A.; Ochab-Marcinek, A. // Acta Physica Polonica B;2007, Vol. 38 Issue 5, p1925 

    Transient properties of different physical systems with metastable states perturbed by external white noise have been investigated. Two noise induced phenomena, namely the noise enhanced stability and the resonant activation, are theoretically predicted in a piece-wise linear fluctuating...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics