Magnetization Exploration in Ruthenate Family, Sr2RRuO6 (R = Y, Lu and Yb)

ABO3 type perovskite structure portrays a familiar face when it comes to crystallization of transition metal or rare earth oxides. However, there also exist stoichiometries comprising well-ordered admixture of transition (T) metal and earth (R) oxides of the form A2TRO6, crystallizing in double perovskite structure. This area has gained lot of interest in recent years due to discovery of high temperature superconductivity in Cuprates, Colossal Magnetoresistance (CMR) in Manganites.
We have studied few double perovskites belonging to the Ruthenate family, viz., Sr2RRuO6 (R = Y, Lu, Yb), in which there exists a slight monoclinic distortion, and results in many interesting attributes. We explored the magnetic properties of double perovskite compounds by detailed magnetization and heat capacity measurements. We observed the magnetization reversal, reduction in magnetic entropy and exchange bias-like properties in these systems. Most interestingly Sr2YbRuO6 shows the magnetic compensation and tunable exchange bias. Furthermore, neutron diffraction and inelastic neutron scattering were used to unravel these attributes at local level in these compounds. 
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