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Abstract:: X-ray absorption spectroscopy (XAS) and soft-X-ray magnetic circular dichroism (SXMCD) at the Mn L2,3-, Cr L2,3- and O-K edges of Sm0.5Ca0.5Mn1-xCrxO3 () bulk polycrystalline samples have been performed at T=20 K below the ferromagnetic Curie temperature. We show the existence of a magnetic sublattice on each of the probed cations. Considering an electronically phase-separated system, results are compared with magnetization and resistivity measurements and a tentative correlation with magnetoresistance properties on such doped compounds is discussed.

We present the L23XMCD of insulating rare earth (oxides and fluorides). The paramagnetic samples were magnetised in a 7T field and cooled down to 5–10K. We compare our XMCD data with a recent model for a 4fN5d0electronic configuration. The L2edge displays a derivative shape, in agreement with the models. The L3edge however, is found to deviate, having a more complicated shape, due to the presence of quadrupolar contributions and, we argue, crystal field effects.