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Arévalo López, Ángel M. ; Castillo Martínez, Elizabeth ; Alario Franco, Miguel Ángel | Institute of Physics | 2008We present the experimental ELNES spectra of the Cr-L2,3 and O-K edges in three high pressure synthesized perovskites, ACrO3 (A = Ca, Sr and Pb). A comparison of the experimental spectra against the theoretical calculations shows the influence o[...]texto impreso
Gómez, R. ; Marquina, V. ; Arévalo López, Ángel M. ; Pérez, J. L. ; Ridaura, R. ; Marquina, M.L. ; Escamilla, R. ; Akachi, T. | Springer Verlag | 2006Mössbauer spectra of a series of samples of the weak ferromagnetic (Ru1-xFex)Sr2GdCu2O8-? system reveal the existence of three dissimilar sites where the Fe atoms can go into the structure. The Mössbauer parameters of the three observed quadrupo[...]texto impreso
Castillo Martínez, Elizabeth ; Schönleber, Andreas ; Smaalen, Sander van ; Arévalo López, Ángel M. ; Alario Franco , Miguel Ángel | Elsevier | 2008The strontium chromium oxide [Sr2O2][CrO2]1.85 misfit layer compound has been synthesised at high pressure and high-temperature conditions. Electron diffraction patterns and high-resolution transmission electron microscopy images along [001] sho[...]
