Vol 4: Positive exchange-bias and giant vertical hysteretic shift in La0.3Sr0.7FeO3-SrRuO3 bilayers.Report as inadecuate



 Vol 4: Positive exchange-bias and giant vertical hysteretic shift in La0.3Sr0.7FeO3-SrRuO3 bilayers.


Vol 4: Positive exchange-bias and giant vertical hysteretic shift in La0.3Sr0.7FeO3-SrRuO3 bilayers. - Download this document for free, or read online. Document in PDF available to download.

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This article is from Scientific Reports, volume 4.AbstractThe exchange-bias effects in the mosaic epitaxial bilayers of the itinerant ferromagnet FM SrRuO3 and the antiferromagnetic AFM charge-ordered La0.3Sr0.7FeO3 were investigated. An uncharacteristic low-field positive exchange bias, a cooling-field driven reversal of positive to negative exchange-bias and a layer thickness optimised unusual vertical magnetization shift were all novel facets of exchange bias realized for the first time in magnetic oxides. The successive magnetic training induces a transition from positive to negative exchange bias regime with changes in domain configurations. These observations are well corroborated by the hysteretic loop asymmetries which display the modifications in the AFM spin correlations. These exotic features emphasize the key role of i mosaic disorder induced subtle interplay of competing AFM-superexchange and FM double exchange at the exchange biased interface and, ii training induced irrecoverable alterations in the AFM spin structure.



Author: Rana, Rakesh; Pandey, Parul; Singh, R. P.; Rana, D. S.

Source: https://archive.org/







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