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VOLUME 124 (2026) | ISSUE 8 | PAGE 615
Nonequilibrium state in quasi-one-dimensional superconducting channels (Mini-review)
DOI: 10.7868/S3034576626100153
Abstract
Superconducting properties of metallic micro- and nanowires can be entirely different from those of bulk superconductors. Of particular interest is the nonequilibrium current-induced state of a quasi-one-dimensional superconducting channel. The most interesting phenomenon here is the stepped I-V characteristic, explained by a process known as phase slip center activation. If the origin of such step-like I-V dependencies is at least qualitatively well understood, a commonly accepted explanation for the step-like R(T) characteristics is still missing. We review theoretical and experimental activities in the field and demonstrate dramatic progress in understanding of the phenomenon of quasi-one-dimensional superconductivity.