Magnetic Switching of Phase-Slip Dissipation in NbSe2 Nanobelts
Abram Falk, Mandar M. Deshmukh, Amy L. Prieto, Jeffrey J. Urban, Andrea Jonas, Hongkun Park
Abstract
The stability of the superconducting dissipationless and resistive states in single-crystalline NbSe2 nanobelts is characterized by transport measurements in an external magnetic field (H). Current-driven electrical measurements show voltage steps, indicating the nucleation of phase-slip structures. Well below the critical temperature, the position of the voltage steps exhibits a sharp, periodic dependence as a function of H. This phenomenon is discussed in the context of two possible mechanisms: the interference of the order parameter and the periodic rearrangement of the vortex lattice within the nanobelt.
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