Theory of current states in narrow superconducting channels

Ivlev, B. I.; Kopnin, N. B.

doi:10.1070/pu1984v027n03abeh004037

Cited by 82 publications

(57 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Although the number of publications dedicated to phase-slip centers is fairly large 5,6 , the dynamics of systems with phase-slip centers has been studied insufficiently 7,8,10,11,12 . The reversed ac Josephson effect under external electromagnetic radiation was detected in thin tin films at a frequency of 10 GHz 7 and in single-crystal wires (whiskers) at frequencies of up to 900 MHz 13,14,15 .…”

Section: Introductionmentioning

confidence: 99%

“…Extrapolations of these linear sections cross the current axis at approximately the same point I 0 (an excess current) 5,6,7,9 .…”

Section: Introductionmentioning

confidence: 99%

“…Phaseslip centers occur in resistive states of a long narrow channel carrying a constant current at a temperature close to the superconducting transition (I > I c , T < T c ) 5,6 . Real structures in which phase-slip centers have been detected are thin films with width w and single-crystal wires (whiskers) with diameter d smaller than the superconductor coherence length ξ.…”

Section: Introductionmentioning

confidence: 99%

“…where ρ N is the material resistivity in the normal state and S is the channel cross section 5,6,7,8 . At the moment when the absolute value of the order parameter vanishes, the phase difference over the center jumps by 2π.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Synchronization of high-frequency vibrations of slipping phase centers in a tin whisker under microwave radiation

Кузнецов

Tulin

1998

J. Exp. Theor. Phys.

View full text Add to dashboard Cite

Current-voltage characteristics of a system with a variable number of phase-slip centers resulting from phase separation in a tin whisker under external microwave field with a frequency Ω/2π ≃ 35 − 45 GHz have been studied experimentally. Emergence and disappearance of steps with zero slope in a whisker's current-voltage characteristic at U m/n = (m/n)UΩ, where m and n are integers and UΩ is determined by Josephson's formula Ω = 2eUΩ, have been investigated. Microwave field generated by phase-slip centers is nonharmonic, and the system of phase-slip centers permits synchronization of internal oscillations at a microwave frequency by an external field with a frequency which is the n-th harmonic of internal oscillations. The estimated microwave power generated by a whisker is 10 −8 W. Stimulation of superconductivity in a current-carrying whisker has been detected.

show abstract

Section: Introductionmentioning

confidence: 99%

“…Extrapolations of these linear sections cross the current axis at approximately the same point I 0 (an excess current) 5,6,7,9 .…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Synchronization of high-frequency vibrations of slipping phase centers in a tin whisker under microwave radiation

Кузнецов

Tulin

1998

J. Exp. Theor. Phys.

View full text Add to dashboard Cite

show abstract

“…The analysis of the steady state of the TDGLEs (1,2) demonstrates that the equation for the current j = k(1 − k 2 ) has two roots when j < j c . One of them is stable and the other is unstable.…”

Section: Theorymentioning

confidence: 99%

The Multiple Phase Slip Phenomena in the Narrow Superconducting Channels

2012

View full text Add to dashboard Cite

The currentvoltage characteristic of the narrow superconducting channel is investigated by direct numerical integration of the time-dependent GinzburgLandau equations. We have demonstrated that the steps in the currentvoltage characteristic correspond to a number of dierent bifurcation points of the time-dependent GinzburgLandau equations. We have analytically estimated the period and the averaged voltage of the oscillating solution for the relatively small currents. We have also found the range of currents where the system transforms to the chaos.

show abstract

Toward the Light‐Operated Superconducting Devices: Circularly Polarized Radiation Manipulates the Current‐Carrying States in Superconducting Rings

et al. 2022

View full text Add to dashboard Cite

The ability to rapidly control and manipulate superconducting states is one of the great challenges of modern condensed matter physics. Circularly polarized radiation interacting with a superconducting condensate acts as an effective magnetic field that can generate supercurrents and DC magnetic moments through the inverse Faraday effect (IFE). Using the time-dependent Ginzburg-Landau (TDGL) equation formalism, the current-carrying states of a small superconducting ring illuminated by such radiation is calculated. Numerical simulations demonstrate the possibility to on-demand switch between current-carrying states in the superconductor by controlling the helicity of the electromagnetic field polarization. This result opens the way to all-optical operation of superconducting devices.

show abstract

Theory of current states in narrow superconducting channels

Cited by 82 publications

References 2 publications

Synchronization of high-frequency vibrations of slipping phase centers in a tin whisker under microwave radiation

Synchronization of high-frequency vibrations of slipping phase centers in a tin whisker under microwave radiation

The Multiple Phase Slip Phenomena in the Narrow Superconducting Channels

Toward the Light‐Operated Superconducting Devices: Circularly Polarized Radiation Manipulates the Current‐Carrying States in Superconducting Rings

Contact Info

Product

Resources

About