【摘 要】
：
The interfacial enhanced ferromagnetism in maganite/ruthenate system is regarded as a promising path to broaden the potential of oxide-based electronic device applications.Here,we systematically studied the physical properties of La1-xCaxMnO3/SrRuO3 super
【机 构】
：
Hefei National Laboratory for Physical Sciences at Microscale,University of Science and Technology o
论文部分内容阅读
The interfacial enhanced ferromagnetism in maganite/ruthenate system is regarded as a promising path to broaden the potential of oxide-based electronic device applications.Here,we systematically studied the physical properties of La1-xCaxMnO3/SrRuO3 superlattices and compared them with the La1-xCaxMnO3 thin films and bulk compounds.The La1-xCaxMnO3/SrRuO3 superlattices exhibit significant enhancement of Curie temperature (TC) beyond the corresponding thin films and bulks.Based on these results,we constructed an extended phase diagram of La1-xCaxMnO3 under interfacial engineering.We considered the interfacial charge transfer and structural proximity effects as the origin of the interface-induced high TC.The structural characterizations revealed a pronounced increase of B-O-B bond angle,which could be the main driving force for the high TC in the superlattices.Our work inspires a deeper understanding of the collective effects of interfacial charge transfer and structural proximity on the physical properties of oxide heterostructures.
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