Abstract
Recently superlattice of pervoskite transition-metal oxides layers has attracted much attention. A superlattice made of high-temperature superconductor and half-metal ferromagnet (HTSC/FM) represents one of the most exciting examples because of their mutually incompatible order parameters. The charge redistribution and orbital occupancy at interfaces are important for understanding the proximity effect and macroscopy magnetic properties. Those nanostructures present a unique playground for new physical phenomena associated with strongly correlated electrons systems and possible technological application in the field of spintronics. Here we performed the measurements of soft x-ray scattering (RSXS) on a YBa2Cu3O7/La2/3Ca1/3MnO3 (YBCO/LCMO) superlattice grown by the pulsed laser deposition (PLD) method on a SrTiO3 (STO)-(001) oriented substrate. The epitaxial growth of the superlattice was characterized with x-ray diffraction. The observed oscillation of soft x-ray reflectivity indicates the high quality of the artificial superlattice structure. The results of RSXS indicated that there could be charge transfer from LCMO layers to YBCO layers at the interface.