Tuning Antiferromagnetism in DyFe2Al10 via Ru Substitution

<p>We report the structural and magnetic properties of DyFe2Al10 and its Ru-substituted counterpart DyFe1.75Ru0.25Al10.<br>Rietveld refinement of X-ray diffraction data confirms that both compounds crystallize in the orthorhombic Cmcm space<br>group with high phase purity. Temperature-dependent magnetization measurements reveal antiferromagnetic ordering in both<br>systems, with a N´eel temperature of 7K for DyFe2Al10 and 7.2K for the Ru-doped variant. A secondary magnetic anomaly near<br>25K is evident in DyFe1.75Ru0.25Al10, but absent in the parent compound. These results demonstrate the tunability of magnetic<br>interactions in Dy-based aluminides via selective elemental substitution.</p>