  A magnetic field is generally considered to be incompatible with
superconductivity as it tends to spin-polarize electrons and breaks apart the
opposite-spin singlet superconducting Cooper pairs. Here, an experimental
phenomenon is observed that an intriguing reemergent superconductivity evolves
from a conventional superconductivity undergoing a hump-like intermediate phase
with a finite electric resistance in the van der Waals heterointerface of
layered NbSe2 and CrCl3 flakes. This phenomenon merely occurred when the
applied magnetic field is parallel to the sample plane and perpendicular to the
electric current direction as compared to the reference sample of a NbSe2 thin
flake. The strong anisotropy of the reemergent superconducting phase is pointed
to the nature of the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state driven by
the strong interfacial spin-orbit coupling between NbSe2 and CrCl3 layers. The
theoretical picture of FFLO state nodes induced by Josephson vortices
collectively pinning is presented for well understanding the experimental
observation of the reemergent superconductivity. This finding sheds light on an
opportunity to search for the exotic FFLO state in the van der Waals
heterostructures with strong interfacial spin-orbit coupling.
