  In this study, approximate bound state solutions of the Dirac equation with
the newly proposed shifted Tietz-Wei (sTW) potential were obtained for any
arbitrary quantum number. Using Generalized Parametric Nikiforov Methods, the
eigenenergy equations as well as the upper and lower spinors of the wave
function corresponding to spin and pseudospin symmetric solutions were obtained
by solving the radial equation. The Pekeris approximation scheme in terms of
the parameters of the shifted Tietz-Wei potential was used to deal with the
spin-orbit coupling potential term k(k+1)/r^2. The solutions obtained for the
radial and polar angular parts of the wave functions were written in terms of
the well-known Jacobi polynomial.
