Application of the z-transform to composite materials

Applications of the z-transform were made earlier to interfacial electron transfer involving semi-infinite solids, e.g., semiconductor/liquid and metal/liquid interfaces and scanning tunneling microscopy. It is shown how the method is readily adapted to treat composite materials, such as solid/solid interfaces or ‘‘molecular wire’’/solid interfaces. © 2001 American Institute of Physics. @DOI: 10.1063/1.1416127#