Abstract
We report the effect of Ru4+ substitution at Ir-site on structural, magnetic and electrical properties in pyrochlore iridate Y2Ir2O7. Structural investigation has been done using x-ray powder diffraction and Rietveld analysis for both samples. There is no structural phase transition with Ru doping. Magnetization study shows that on slightly substitution of Ru at Ir-site effectively shifts the magnetic irreversible temperature Tirr towards low temperature and reduce the bifurcation between MZFC and MFC branches. The electrical resistivity shows an insulating behavior in whole temperature range, however, resistivity decreases with doping of Ru.
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