Abstract
We report observation of exchange bias (EB) field manifesting in the bilayer thin film of SrRuO3 (SRO) in a rare combination with double perovskite Sr2YRuO6 (SYRO) grown on SrTiO3 (100) substrate. From the temperature and cooling field dependence of exchange bias (HEB) and coercive field (HC), we found an anomalous correlation of these two properties in the temperature range of 15–30 K; the HEB decreases while HC increases with increasing temperature. This anomaly along with the disappearance of the HEB points towards the role of spin fluctuations near the blocking temperature. A good agreement of training effect data with various theoretical models, in turn, supports that the EB derived from the geometrically frustrated interfaces involving double perovskites has generic features as well.
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