Enhanced Electrical Resistivity and Properties via Ion Bombardment of Ferroelectric Thin Films.

Saremi, Sahar; Xu, Ruijuan; Dedon, Liv R; Mundy, Julia A; Hsu, Shang-Lin; Chen, Zuhuang; Damodaran, Anoop R; Chapman, Scott P et al. · Adv Mater · 2016

basic_science · Level V

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Abstract

A novel approach to on-demand improvement of electronic properties in complex-oxide ferroelectrics is demonstrated whereby ion bombardment - commonly used in classic semiconductor materials - is applied to the PbTiO<sub>3</sub> system. The result is deterministic reduction in leakage currents by 5 orders of magnitude, improved ferroelectric switching, and unprecedented insights into the nature of defects and intergap state evolution in these materials.