Ying-Hui Hsieh, Jia-Ming Liou, Bo-Chao Huang, Chen-Wei Liang, Qing He, Qian Zhan, Ya-Ping Chiu, Yi-Chun Chen, Ying-Hao Chu
In strongly correlated oxides, heterointerfaces, manipulating the interaction, frustration, and discontinuity of lattice, charge, orbital, and spin degrees of freedom, generate new possibilities for next generation devices. In this study, we went back to examine the existing oxide heterostructures and found the local conduction at the BiFeO3-CoFe2O4 vertical interface. In such hetero-nanostructure, the tubular interface, surrounding BiFeO3-CoFe2O4 vertical interface, can not only be the medium to the coupling between phases, but also be a new state of the matter. Our study demonstrates a novel concept on oxide interface design and opens a pathway alternative for the explorations of diverse functionalities in complex oxide interfaces.
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http://arxiv.org/abs/1206.5599
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