Dynamic response and roughening of ferroelectric domain walls driven at planar electrode edges

Article Article scientifique Article Dynamic response and roughening of ferroelectric domain walls driven at planar electrode edges eng 2021-12-13 author Rapin Guillaume 673650 author Ehrensperger Sophia 669191 author Blaser Cédric 591837 author Caballero Nirvana Belen 0000-0001-6315-2843 909421 author Paruch Patrycja 0000-0001-7799-6721 126293 242903 10.1063/5.0069920 0003-6951 2111.11136 https://aip.scitation.org/doi/10.1063/5.0069920 Understanding and controlling the motion, stability, and equilibrium configuration of ferroelectric domain walls is key for their integration into potential nanoelectronic applications, such as ferroelectric racetrack memories. Using piezoresponse force microscopy, we analyze the growth and roughness of ferroelectric domains in epitaxial thin film Pb(Zr0.2Ti0.8)O3, driven by the electric fields at straight edges of planar electrodes at two different temperatures. This device relevant geometry allows us to confirm that the domain walls are well described as one-dimensional monoaffine elastic interfaces driven in random-bond disorder. However, we observe a progressive increase in roughness as initially flat domain walls move through the disorder landscape, which could prove a significant limiting factor for racetrack-type memories using ferroelectrics. Dewey 500.2 Swiss National Science Foundation Emergent behaviour at ferroic interfaces: from domain walls to oxide superlattice structures 200021_178782 CH Project funding 33 Département de physique de la matière quantique 131 false 780 Groupe Giamarchi 786 Groupe Paruch https://doi.org/10.26037/yareta:pmummlrfbneihiwchlsejykinu Applied Physics Letters 119 7cb11fe6-5155-4a2f-bc35-60edb94ad682 Article (Published version) Public Rapin-2021-2.pdf 1071775 application/pdf openAccess Faculté des sciences / Section de physique / Département de physique de la matière quantique

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Dynamic response and roughening of ferroelectric domain walls driven at planar electrode edges	Applied Physics Letters			2021	661	144

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Ehrensperger, Sophia