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This paper presents structural, detailed magnetic, and exchange bias studiesin polycrystalline Ba$_{2}$ScRuO$_{6}$ synthesized at ambient pressure. Incontrast to its strontium analogue, this material crystallizes in a 6Lhexagonal structure with the space group P$\overline{3}$m1. The Rietveldrefinement using the room-temperature powder X-ray diffraction pattern suggestsa Ru-Sc disorder in the structure. The temperature variation of thedc-electrical resistivity highlights a semiconducting behaviour with theelectron conduction corresponding to the Mott 3D-VRH model. Detailedmagnetization measurements show that Ba$_{2}$ScRuO$_{6}$ developsantiferromagnetic ordering at T$_{N}$ $\approx$ 9 K. Interestingly, below 9 K(T$_{N}$), the field cooled (FC) magnetic field variation of the magnetizationcurves highlights exchange bias effect in the sample. The exchange bias fieldreaches a maximum value of 1.24 kOe at 2 K. The exchange bias effect below themagnetic ordering temperature can be attributed to inhomogeneous magneticcorrelations owing to the disorder in the structure.

Magnetism and exchange bias properties in Ba$_{2}$ScRuO$_{6}$