How the Phase Slips in a Current-Biased Narrow Superconducting Stripe?

Abstract

The theory of current transport in a narrow superconducting channel accounting for thermal fluctuations is revisited. The value of voltage appearing in the sample is found as the function of temperature (close to transition temperature $T-T_{\mathrm{c}}$ $\ll T_{\mathrm{c}}$) and bias current $J<J_{\mathrm{c}}$ ( $J_{\mathrm{c}}$ is a value of critical current calculated in the framework of the BCS approximation, neglecting thermal fluctuations). It is shown that the careful analysis of vortex crossing of the stripe results in considerable increase of the activation energy.

arXiv comment6 pages, 2 figures

References in corpus (3)

• Probing individual topological tunnelling events of a quantum field via their macroscopic consequences
• Quantitative analysis of quantum phase slips in superconducting MoGe nanowires revealed by switching-current statistics
• Saddle point states in 2D superconducting film biased near the depairing current

Cited by in corpus (4)

• Edge effect pinning in mesoscopic superconducting strips with non-uniform distribution of defects
• Phase Slips in Superconducting Weak Links
• Resistance of 2D superconducting films
• Instabilities of the normal state in current-biased narrow superconducting strips