Journal ArticleDOI
Josephson currents in superconducting tunneling: the effect of microwaves and other observations
TLDR
In this article, a tunneling crossing of low resistance (5 to 20 OMEGA with a crossing area of 1.5 x 10/sup -4/ cm/sup −2/) was fabricated.Abstract:
Tunneling crossings of low resistance (5 to 20 OMEGA with a crossing area of 1.5 x 10/sup -4/ cm/sup -2/) were fabricated. Each of these exhibited zero-voltage currents predicted by Josephson and attributed, in effect, to the tunneling of Cooper pairs. New effects are summarized from experiments on the Al/ Al2/sub 2//sub 3//Sn samples. (R.E.U.)read more
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Journal ArticleDOI
Brownian motors: noisy transport far from equilibrium
TL;DR: In this paper, the main emphasis is put on directed transport in so-called Brownian motors (ratchets), i.e. a dissipative dynamics in the presence of thermal noise and some prototypical perturbation that drives the system out of equilibrium without introducing a priori an obvious bias into one or the other direction of motion.
Journal ArticleDOI
Current‐voltage characteristics of josephson junctions
TL;DR: In this paper, a model for superconducting Josephson junctions analogous to the driven simple pendulum with damping gives dc I•V curves displaying hysteresis for light damping.
Journal ArticleDOI
The fractional a.c. Josephson effect in a semiconductor-superconductor nanowire as a signature of Majorana particles
TL;DR: The fractional alternating-current Josephson effect produces a series of steps in the current-voltage characteristics of a superconducting junction driven at radiofrequencies as discussed by the authors, which is observed in a semiconductor-superconductor nanowire.
Journal ArticleDOI
Supercurrents through barriers
TL;DR: In this paper, a phenomenological theory was developed and applied to a number of topics, such as penetration of a magnetic field into a barrier, interference of supercurrents in the presence of magnetic field, the cut-off frequency associated with the propagation of electromagnetic waves along a barrier and structure in the d.c. supercurrent.