Bound states of the Dirac equation for the PT-symmetric generalized   Hulthen potential by the Nikiforov-Uvarov method
  The one-dimensional Dirac equation is solved for the PT-symmetric generalized Hulthen potential. The Nikiforov-Uvarov method which is based on solving the second-order linear differential equations by reduction to a generalized equation of hypergeometric type is used to obtain exact energy eigenvalues and corresponding eigenfunctions. 
Harun Egrifes, Ramazan Sever