Supersymmetric solutions of PT-/non-PT-symmetric and non-Hermitian   Screened Coulomb potential via Hamiltonian hierarchy inspired variational   method
  The supersymmetric solutions of PT-symmetric and Hermitian/non-Hermitian forms of quantum systems are obtained by solving the Schrodinger equation for the Exponential-Cosine Screened Coulomb potential. The Hamiltonian hierarchy inspired variational method is used to obtain the approximate energy eigenvalues and corresponding wave functions. 
Gholamreza Faridfathi and Ramazan Sever