Structure and transport of LaFeO$_{3}$ - Sm$_{2}$CuO$_{4}$ superlattices

When materials with different work functions are stacked to form a superlattice, charge transfer occurs until the electrostatic potential due to charge build up compensates the difference in work functions. This interfacial charge transfer process is a new route to dope materials. We have grown fully epitaxial superlattices consisting of Sm$_{2}$CuO$_{4}$ (SCO), the parent compound of the electron doped superconducting cuprates, and LaFeO$_{3}$ (LFO) an antiferromagnetic insulator. A detailed structural characterization by means of x-ray diffraction, scanning transmission electron microscopy, and atomic force microscopy, demonstrates the high structural quality of our samples. We will show electronic transport measurements of the superlattices, and SCO and LFO individual thin films supporting the possibility of electron doping the Sm$_{2}$CuO$_{4}$ in these samples.