Giant Shapiro steps with screening currents

1992 ◽  
Vol 69 (3) ◽  
pp. 514-517 ◽  
Author(s):  
D. Domínguez ◽  
Jorge V. José
Keyword(s):  
Shapiro Steps

scholarly journals Multiple Andreev reflections and Shapiro steps in a Ge-Si nanowire Josephson junction

2019 ◽  
Vol 3 (8) ◽  
Author(s):  
Joost Ridderbos ◽  
Matthias Brauns ◽  
Ang Li ◽  
Erik P. A. M. Bakkers ◽  
Alexander Brinkman ◽  
...  
Keyword(s):  
Josephson Junction ◽  
Shapiro Steps ◽  
Si Nanowire ◽  
Multiple Andreev Reflections

Influence of induced magnetic fields on Shapiro steps in Josephson-junction arrays

1994 ◽  
Vol 50 (13) ◽  
pp. 9387-9396 ◽  
Author(s):  
J. R. Phillips ◽  
H. S. J. van der Zant ◽  
J. White ◽  
T. P. Orlando
Keyword(s):  
Magnetic Fields ◽  
Josephson Junction ◽  
Shapiro Steps ◽  
Josephson Junction Arrays ◽  
Junction Arrays

INTERACTION OF MESOSCOPIC JOSEPHSON JUNCTION WITH A SUCCESSIVE SQUEEZED COHERENT FIELD

2000 ◽  
Vol 14 (16) ◽  
pp. 609-618
Author(s):  
V. A. POPESCU
Keyword(s):  
Coherent State ◽  
Josephson Junction ◽  
Coherent States ◽  
Quantum Noise ◽  
Shapiro Steps ◽  
Superconducting Ring ◽  
Coherent Field ◽  
Current Voltage ◽  
Quantum Current ◽  
The Difference

Signal-to-quantum noise ratio for quantum current in mesoscopic Josephson junction of a circular superconducting ring can be improved if the electromagnetic field is in a successive squeezed coherent state. The mesoscopic Josephson junctions can feel the difference between the successive squeezed coherent states and other types of squeezed coherent states because their current–voltage Shapiro steps are different. We compare our method with another procedure for superposition of two squeezed coherent states (a squeezed even coherent state) and consider the effect of different large inductances on the supercurrent.

Mechanically induced Shapiro steps: Enormous effect of vibrations on the charge-density wave transport

2021 ◽  
Vol 118 (22) ◽  
pp. 223105
Author(s):  
M. V. Nikitin ◽  
S. G. Zybtsev ◽  
V. Ya. Pokrovskii ◽  
B. A. Loginov
Keyword(s):  
Charge Density ◽  
Charge Density Wave ◽  
Density Wave ◽  
Shapiro Steps ◽  
Wave Transport

EFFECT OF THERMAL NOISE ON THE CURRENT-VOLTAGE CHARACTERISTICS OF JOSEPHSON JUNCTIONS

1996 ◽  
Vol 10 (22) ◽  
pp. 1095-1102 ◽  
Author(s):  
A.K. CHATTAH ◽  
C.B. BRIOZZO ◽  
O. OSENDA ◽  
M.O. CÁCERES
Keyword(s):  
Josephson Junctions ◽  
Thermal Noise ◽  
Planck Equation ◽  
Resonance Problem ◽  
Shapiro Steps ◽  
Periodic Distribution ◽  
Current Voltage ◽  
Current Voltage Characteristics ◽  
Path Integral Method ◽  
Asymptotic Time

We analyze the influence of thermal noise on the Shapiro steps appearing in the current-voltage characteristics of Josephson junctions. We solve the Fokker-Planck equation describing the system by a path integral method in the steepest-descent approximation, previously applied to the stochastic resonance problem. We obtain the Asymptotic Time-Periodic Distribution Pas(ϕ, t), where ϕ∈[0, 2π] and compute from it the voltage [Formula: see text], constructing the I-V characteristics. We find a defined “softening” of the Shapiro steps as temperature increases, for values of the system parameters in the experimentally accessible range.

Shapiro‐Steps in Josephson Point‐Contact of Y‐Ba‐Cu‐O Ceramics

1989 ◽  
Vol 136 (5) ◽  
pp. 1476-1479
Author(s):  
Tsutomu Yamashita ◽  
Masasuke Takata ◽  
Yutaka Iwai ◽  
Takayuki Komatsu ◽  
Kazumasa Matusita
Keyword(s):  
Point Contact ◽  
Shapiro Steps
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