Title: Unusual evolution of B_{c2} and T_c with inclined fields in restacked TaS_2 nanosheets,
Abstract: Recently we reported an enhanced superconductivity in restacked monolayer
TaS_2 nanosheets compared with the bulk TaS_2, pointing to the exotic physical
properties of low dimensional systems. Here we tune the superconducting
properties of this system with magnetic field along different directions, where
a strong Pauli paramagnetic spin-splitting effect is found in this system.
Importantly, an unusual enhancement as high as 3.8 times of the upper critical
field B_{c2}, as compered with the Ginzburg-Landau (GL) model and Tinkham
model, is observed under the inclined external magnetic field. Moreover, with
the out-of-plane field fixed, we find that the superconducting transition
temperature T_c can be enhanced by increasing the in-plane field and forms a
dome-shaped phase diagram. An extended GL model considering the special
microstructure with wrinkles was proposed to describe the results. The
restacked crystal structure without inversion center along with the strong
spin-orbit coupling may also play an important role for our observations.