Ferroelectric effects in individual BaTiO 3 nanocrystals investigated by electron holography

Daniel Szwarcman*, Axel Lubk, Martin Linck, Karin Vogel, Yossi Lereah, Hannes Lichte, Gil Markovich

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

BaTiO 3 (BTO) nanocubes of about 50 nm in size were investigated by means of off-axis electron holography combined with in situ heating above and below the Curie temperature. It is shown that reconstructed electron phase maps of the BTO nanocubes are associated with the ferroelectric polarization pattern through a mechanism that could either be direct imaging of the internal potential or lattice variations that are common in ferroelectric domain patterns.

Original languageEnglish
Article number134112
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume85
Issue number13
DOIs
StatePublished - 27 Apr 2012

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