%0 Conference Paper
%A Matzen, Sylvia
%A Nesterov, Oleksiy
%A Rispens, Gijsbert
%A Heuver, Jeroen
%A Biegalski, Michael
%A Christen, Hans
%A Noheda, Beatriz
%T Super switching and control of in-plane Ferroelectric Nanodomains in strained thin Films
%I University of Groningen
%M PUBDB-2015-00206
%D 2014
%X Increasing miniaturization in ferroelectrics allows creating complex domain structures with novel functionalities particularly interesting for the development of nanoelectronic devices. Recently, exotic dipole arrangements forming flux-closures have been observed to occur spontaneously, mainly at crystal edges or in nano-objects, but their formation remains not fully understood. In this work, we use epitaxial strain in PbxSr1−xTiO3 ferroelectric thin films grown on (110)-DyScO3 to control a complex domain architecture at two scales with a purely in-plane polarization, that can be easily switched by a scanning probe. We show that periodic 90° a1-a2 stripe nanodomains self-organize into so-called ‘superdomains’ at larger scales. Unlike previous reports where significant depolarizing fields are expected to affect the domain formation, our results prove that these hierarchical domain arrangements, forming flux-closure states, can be stabilized in extended thin films, where strain-equivalent superdomains are created to emulate the single-domain ground state. Importantly, despite the inherent difficulty to switch in-plane polarizations, the hierarchical domain organization allows the polarization to be manipulated with the electric field available through a scanning probe, offering promising perspectives to design novel electronic devices based on thin films with vertical domain walls and no effect of depolarizing field.
%B European Materials Research Society Fall Meeting
%C 15 Sep 2014 - 19 Sep 2014, Warsaw (Poland)
Y2 15 Sep 2014 - 19 Sep 2014
M2 Warsaw, Poland
%F PUB:(DE-HGF)6
%9 Conference Presentation
%U https://bib-pubdb1.desy.de/record/205646