Exact Solution of the Klein-Gordon Equation for the PT-Symmetric   Generalized Woods-Saxon Potential by the Nikiforov-Uvarov Method
  The one-dimensional Klein-Gordon (KG) equation has been solved for the PT-symmetric generalized Woods-Saxon (WS) potential. The Nikiforov-Uvarov(NU} 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. We have also investigated the positive and negative exact bound states of the s-states for different types of complex generalized WS potentials. 
Sameer M. Ikhdair and Ramazan Sever