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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We investigate the origin of the depolarization rates in ultrathinadsorbate-stabilized ferroelectric wires. By applying density functional theorycalculations and analytic modeling, we demonstrate that the depolarizationresults from the leakage of charges stored at the surface adsorbates, whichplay an important role in the polarization stabilization. The depolarizationspeed varies with thickness and temperature, following several complex trends.A comprehensive physical model is presented, in which quantum tunneling,Schottky emission and temperature dependent electron mobility are taken intoconsideration. This model simulates experimental results, validating thephysical mechanism. We also expect that this improved tunneling-Schottkyemission model could be applied to predict the retention time of polarizationand the leakage current for various ferroelectric materials with differentthicknesses and temperatures.

Modiffied Schottky emission to explain thickness dependence and slow depolarization in BaTiO$_3$ nanowires