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In-plane PFM images of two BiFeO₃ surfaces

Two separate 18µm PFM images (in-plane amplitude) showing BiFeO₃/SrRuO₃/DyScO₃ (left)
and BiFeO₃/SrRuO₃/SrTiO₃ (right). For both images the top surface is BiFeO₃
and the domain structure is templated by the base level substrate (DyScO₃ and SrTiO₃).
Imaged with the Cypher AFM.

Sample courtesy of Lane Martin, University of Illinois at Urbana-Champaign.