Josephson scanning tunneling microscopy - art. no. 212506

We propose a set of scanning tunneling microscopy experiments in which the surface of a superconductor is scanned by a superconducting tip. Potential capabilities of such experimental setup are discussed. Most important antic ipated results of such an experiment include the position-resolved measurem ent of the superconducting order parameter and the possibility to determine the nature of the secondary component of the order parameter at the surfac e. The theoretical description based on the tunneling Hamiltonian formalism is presented.