The aim of this paper is to study Hamiltonian elliptic system of the form where Omega subset of R-2 is a bounded domain. In the second place, we present existence results for the following stationary Schrodinger systems defined in the whole plane We assume that the nonlinearities f, g have critical growth in the sense of Trudinger Moser. By using a suitable variational framework based on the generalized Nehari manifold method, we obtain the existence of ground state solutions of both systems (0.1) and (0.2).