The recently reported and hitherto poorly understood resistance anomalies at the superconducting transition of quasi-one-dimensional mesoscopic Al structures can be induced by radio-frequency radiation. We show that these anomalies are correlated with changes in the voltage-current characteristics which are created in the presence of the radiation below the superconducting transition. The anomalies appear to be closely related to the creation of localized phase-slip centers by the radio-frequency radiation. © 1996 The American Physical Society.

• Received 8 February 1996

DOI:https://doi.org/10.1103/PhysRevB.53.11332