  The efficient generation and control of spin polarization via charge-spin
conversion in topological semimetals are desirable for future spintronic and
quantum technologies. Here, we report the charge-spin conversion (CSC) signals
measured in a Weyl semimetal candidate WTe2 based hybrid graphene device with a
geometrical design. Notably, the geometrical angle of WTe2 on the graphene
spin-valve channel yields contributions to symmetric and anti-symmetric CSC
signal components. The spin precession measurements of CSC signal at different
gate voltages and ferromagnet magnetization shows the robustness of the CSC in
WTe2 at room temperature. These results can be useful for the design of
heterostructure devices and in the architectures of two-dimensional spintronic
circuits.
