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Abhimanyu Rana, Haidong Lu, Kashinath Bogle, Qi Zhang, Rama Vasudevan, Vishal Thakare, Alexei Gruverman, Satishchandra Ogale and Nagarajan Valanoor Scaling Behavior of Resistive Switching in Epitaxial Bismuth Ferrite Heterostructures Advanced Functional Materials 24

Article first published online: 18 MAR 2014 | DOI: 10.1002/adfm.201400110

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Resistive switching of (001) epitaxial multi­ferroic BiFeO3/La0.67Sr0.33MnO3/SrTiO3 heterostructures is investigated for varying lengths scales in both the thickness and lateral directions. Macroscale current–voltage analyses in conjunction with local conduction atomic force microscopy reveal that whilst both the local and global resistive states are strongly driven by polarization direction, the type of conduction mechanism is different for each distinct thickness regime.

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