Abstract
In this article, we studied on trianglar antiferromagnetic order in ferroelectromagnetic in the Sc1-xLuxMnO3 systems. We also studied on Y1-xLuxMnO3 systems as compared with Sc1-xLuxMnO3 systems.Structural, magnetic and Mn K-edge X-ray absorption near-edge structure (XANES) spectroscopic studies for the stoichiometric, hexagonal Sc1-xLuxMnO3 (0 < x < 1) system are reported. The identical main threshold edge energy E0 of 6545 eV indicates trivalent Mn3+ for all samples. The triangular antiferromagnetic (AF) Neel temperature TN decreases monotonically from 133 K for ScMnO3 to 112 K for Sc0.5Lu0.5MnO3 and 92 K for LuMnO3, due to decreasing d-p hybridization in trigonal MnO5 block. Complex low temperature spin reorientations are observed for all samples. The K pre-edge features with energy separation E(P2 - P1) of 2.27eV for ScMnO3 and 2.31eV for LuMnO3 are from the 1s-3d dipole transition, which is weakly allowed through the hybridization of Mn 4p with 3d states of neighboring Mn atoms. The larger P1 peak is corresponding to transition into e'and e"minority spin states in MnO5 crystal field, and the smaller P2 peak is into leftover e"minority spin states.