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23 p, 2.2 MB Nanomechanics of flexoelectric switching / Očenášek, Jan (University of West Bohemia in Pilsen) ; Lu, Haidong (University of Nebraska-Lincoln. Department of Physics and Astronomy) ; Bark, C.W. (University of Wisconsin-Madison. Department of Materials Science and Engineering) ; Eom, C.B. (University of Wisconsin-Madison. Department of Materials Science and Engineering) ; Alcalá, Jorge (Universitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica) ; Catalan, Gustau (Institut Català de Nanociència i Nanotecnologia) ; Gruverman, A. (University of Nebraska-Lincoln. Department of Physics and Astronomy)
We examine the phenomenon of flexoelectric switching of polarization in ultrathin films of barium titanate induced by a tip of an atomic force microscope (AFM). The spatial distribution of the tip-induced flexoelectricity is computationally modeled both for perpendicular mechanical load (point measurements) and for sliding load (scanning measurements), and compared with experiments. [...]
2015 - 10.1103/PhysRevB.92.035417
Physical Review B, Vol. 92, Issue 3 (July 2015) , art. 035417  

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