Abstract
We report the magnetotransport properties of ${T}_{d}\ensuremath{-}\mathrm{MoT}{\mathrm{e}}_{2}$ based vertical junctions with NbN superconducting electrodes. Benefiting from the high critical magnetic field of NbN, the superconducting state is maintained up to 8 T. A sharp drop of resistance is observed at ${T}_{c}\ensuremath{\sim}13\phantom{\rule{4pt}{0ex}}\mathrm{K}$, corresponding to the critical temperature of NbN electrodes. The differential conductance spectra show that the zero-bias conductance is increased by magnetic fields with 41.6% increment at 14 T. Intriguingly, negative magnetoresistance (MR) \ensuremath{\sim}\ensuremath{-}48% is observed under 8 T at 3 K. The negative MR disappears above superconductivity critical temperature \ensuremath{\sim}13 K. The Weyl semimetal $\mathrm{MoT}{\mathrm{e}}_{2}$ combined with superconductor is promising for searching topological superconductivity and Majorana zero modes.
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