  We investigate SUSY breaking mediated through the deformation of the
space-time geometry due to the backreaction of a nontrivial configuration of a
bulk scalar field. To illustrate its features, we work with a toy model in
which the bulk is four dimensions. Using the superconformal formulation of
SUGRA, we provide a systematic method of deriving the 3D effective action
expressed by the superfields, which can basically be extended to 5D SUGRA
straightforwardly.
