Abstract
The effect of Fe doping on the magnetism of DyMn1-xFexO3 (x<0.1) single crystals is reported. Specifically, TN of the Mn sublattice decreases from 38K (x = 0) to 33K (x = 0.1), TS = 17.9K (x = 0) connected with the transition of Mn-spins into the cycloidal magnetic phase decreases to 15.9K (x = 0.01) and vanishes for higher x concentrations, while the ordering temperature of the Dy sublattice varies between 5.9K (x = 0.01) and 4.1K (x = 0.02). These results indicate the ground state magnetic structure of DyMnO3 can be destabilized, and the multiferroicity is completely suppressed by very low Fe doping. Similar effects were previously observed in the multiferroic TbMn1-xFexO3 system.
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