부산대학교 도서관

To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.jmmm.2006.10.750 Byline: P.P. Deen (a), F. Yokaichiya (b), L. Paolasini (c), S. Lee (d), A. de Santis (e), F. Bobba (e), A.M. Cucolo (e) Abstract: Resonant X-ray scattering experiments have been performed on a heterostructure comprising ferromagnetic (La.sub.0.7Ca.sub.0.3MnO.sub.3).sub.100A and superconducting (YBa.sub.2Cu.sub.3O.sub.7-[delta]).sub.100A blocks. These measurements have probed a superstructure with wavevector q=(0.50.50), originating from the distortion of the MnO.sub.6 octahedra responsible for the ferromagnetic state in the La.sub.0.7Ca.sub.0.3MnO.sub.3 blocks. An intriguing temperature dependence of the integrated intensities indicates the rotation of the distorted MnO.sub.6 octahedra with the onset of both ferromagnetic and superconducting order, correlated via SQUID magnetisation and resistivity measurements. Author Affiliation: (a) Institut Laue Langevin, 6 Rue Jules Horowitz, BP 156 F-38042 Grenoble, France (b) Brookhaven National Laboratory, P.O. Box 5000, Upton, NY, USA (c) European Synchrotron Radiation Facility, 6 Rue Jules Horowitz, BP 220 F-38043 Grenoble, France (d) University of Liverpool, Oxford Street, Liverpool L69 7ZE. UK (e) CNR/INFM Supermat Laboratory and Physics Department, University of Salerno, Via S. Allende. Baronissi 84081, Italy