Ferroelectric domain walls as nanoscale pathways to novel functional properties (presentation video)

Patrycja Paruch

doi:10.1117/12.2064195

17 August 2014 Ferroelectric domain walls as nanoscale pathways to novel functional properties (presentation video)

Patrycja Paruch

Proceedings Volume 9165, Physical Chemistry of Interfaces and Nanomaterials XIII; 91650X (2014) https://doi.org/10.1117/12.2064195
Event: SPIE NanoScience + Engineering, 2014, San Diego, California, United States

Abstract

In ferroelectrics, domain walls separate regions with different polarization. At domain walls, modified symmetry and electronic structure, or chemical segregation can lead to unusual, extremely localized functional properties, quite different from those of the parent phase. Particularly exciting has been the discovery of domain-wall-specific electrical conductivity in multiferroic BiFeO3 [1]. Here, I will present our generalization of these observations to Pb(Zr,Ti)O3 [2], highlighting the key role of oxygen vacancies, whose distribution can be modulated to reversibly control domain wall transport. For these studies, we have also developed carbon-nanotube-based probes with exceptional performance [3]. [1] Seidel, Nat. Mat. 8, 229 (2009) [2] Guyonnet, Adv. Mat. 23, 5377 (2011) [3] Lisunova, Nano Lett. 13, 4527 (2013)

Citation Download Citation

Patrycja Paruch "Ferroelectric domain walls as nanoscale pathways to novel functional properties (presentation video)", Proc. SPIE 9165, Physical Chemistry of Interfaces and Nanomaterials XIII, 91650X (17 August 2014); https://doi.org/10.1117/12.2064195

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