English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We report on the electric field response of 180 degree nanodomain walls inBaTiO$_3$ using in situ electrical biasing in transmission electron microscopy(TEM). The sample is biased on a micro-device designed for reliable testingwhose key attributes are confirmed by finite element calculations. The presenceof weakly charged zig-zag domain walls at room temperature is attributed to thegeometric confinement of the device. The motion of the domain walls under theapplied electric field allows to extract local P-E loops where distinct domainwall pinning in deep and random energy potential profiles, characteristic forhard and soft ferroelectrics, respectively, are observed. Hard domain wallpinning results in asymmetrical loops typical for "hard" ferroelectrics whilethe soft domain wall pinning follows Rayleigh-like behaviour. All effects aremeasured locally and directly from the imaged domain structure.

Local hard and soft pinning of 180$^\circ$ domain walls in BaTiO$_3$ probed by in situ transmission electron microscopy