Modulated electronic configurations in selectively doped multilayered nanostructures

Research paper by V. M. Loktev, Yu. G. Pogorelov

Indexed on: 17 Aug '08Published on: 17 Aug '08Published in: Physics - Superconductivity


A simple theoretical model is proposed to describe the recent experimental results on formation of induced superconducting state and anomalous tunneling characteristics in selectively doped multilayered nanostructures based on La$_2$CuO$_4$ perovskite. In particular, it is shown that the structure composed from the nominally non-superconducting (undoped and overdoped) layers turns to be superconducting with superconductivity confined to narrow regions near the interfaces, in agreement with the experimental observations.