Beleggia, Marco

De Graef, M.

Petford-Long, A. K.

Phatak, C.

Ferroelectric nanostructures are important for a variety of applications in electronic and electro-optical devices, including nonvolatile memories and thin-film capacitors. These applications involve stability and switching of polarization using external stimuli, such as electric fields. We present a theoretical model describing how the shape of a nanoparticle affects its polarization in the absence of screening charges, and quantify the electron-optical phase shift for detecting ferroelectric signals with phase-sensitive techniques in a transmission electron microscope. We provide an example phase shift computation for a uniformly polarized prolate ellipsoid with varying aspect ratio in the absence of screening charges

Online Research Database In Technology

Theoretical study of ferroelectric nanoparticles using phase reconstructed electron microscopy

C. Phatak

A. K. Petford-Long

M. Beleggia

M. De Graef

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Physical Review B

http://orbit.dtu.dk/ws/files/100929164/PhysRevB.89.214112.pdf

Theoretical study of ferroelectric nanoparticles using phase reconstructed electron microscopy

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Online Research Database In Technology

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