Electron-Beam Driven Relaxation Oscillations in Ferroelectric Nanodisks

Abstract

Using a combination of computational simulations, atomic-scale resolution imaging and phenomenological modelling, we examine the underlying mechanism for nanodomain restructuring in lead zirconate titanate (PZT) nanodisks driven by electron beams. The observed subhertz nanodomain dynamics are identified with relaxation oscillations where the charging/discharging cycle time is determined by saturation of charge traps and nanodomain wall creep. These results are unusual in that they indicate very slow athermal dynamics in nanoscale systems.

5 pages, 2 figures

References in corpus (5)

• Nanoscale studies of domain wall motion in epitaxial ferroelectric thin films
• Manipulating Ferroelectric Domains in Nanostructures Under Electron Beams
• High-Symmetry Polarization Domains in Low-Symmetry Ferroelectrics
• Faceting Oscillations in Nano-Ferroelectrics
• Electron-Beam Driven Relaxation Oscillations in Ferroelectric Nanodisks

Cited by in corpus (3)

• Hydrodynamics of Domain Walls in Multiferroics: Impact on Memory Devices
• Electron-Beam Driven Relaxation Oscillations in Ferroelectric Nanodisks
• Dielectric relaxation by quantum critical magnons