Help Privacy Policy Disclaimer
  Advanced SearchBrowse




Journal Article

Nanoscale analysis of dispersive ferroelectric domains in bulk of hexagonal multiferroic ceramics


Willinger,  Marc Georg
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available

Baghizadeh, A., Vieira, J. M., Stroppa, D. G., Willinger, M. G., & Amaral, V. S. (2018). Nanoscale analysis of dispersive ferroelectric domains in bulk of hexagonal multiferroic ceramics. Materials Characterization, 145, 347-352. doi:10.1016/j.matchar.2018.08.042.

Cite as: https://hdl.handle.net/21.11116/0000-0002-16D5-5
The atomic nature of topologically protected ferroelectric (FE) walls in hexagonal ReMnO3 oxides (R: Sc, Y, Er, Ho, Yb, Lu) creates an interesting playground to study effects of defects on domain walls. The 6-fold FE vortices in this multiferroic family lose the ordering by the rule of 6 in the presence of partial edge dislocations (PED) besides it can be modified by chemical doping. Therefore, it is essential to comprehend the cross coupling of FE walls and defects or vacancies in the lattice of multiferroics. Atomic resolution STEM is used to explore the correlative response of electrical polarization of FE domains in the presence of defects in multiferroic ceramics. Such level of resolution also allows the study of switching of FE domains on encounter of lattice defects. The driving force behind appearance of dispersed, small FE domains in images of piezo force microscopy is revealed by observation of lattice defects and FE boundaries simultaneously at the nano-scale. Planar defects and FE domain walls play their role of internal interfaces consequently such interplaying duly modifies the magnetic and FE properties of multiferroic oxides.