Vortex dynamics in the region of charge imbalance

TL;DR

This paper investigates vortex behavior near the superconductor-normal boundary, revealing that vortices continue to move under charge imbalance, influenced solely by the superconducting current component.

Contribution

It provides experimental evidence on vortex dynamics in nonequilibrium regions, emphasizing the role of the superconducting current in vortex motion near phase-slip lines.

Findings

Vortices persist in motion despite charge imbalance.

Vortex dynamics are governed by interaction with the superconducting current.

Study focuses on the nonequilibrium region near the S-N boundary.

Abstract

The nature of vortex flows in the nonequilibrium region arising in the vicinity of phase-slip lines at the S-N boundary are investigated experimentally. It is shown that vortices continue to move when charge imbalance appears in a film that is in a dynamic mixed state. The vortex dynamics in this case is determined by the interaction of the vortices with only the superconducting component of the current. This statement is supported by a study of the dynamic mixed state in the nonequilibrium region near the S-N boundary.