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Electron-beam-induced ferroelectric domain behavior in the transmission electron microscope: Toward deterministic domain patterning
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2016 (English)In: Physical Review B, ISSN 2469-9950, E-ISSN 2469-9969, Vol. 94, no 17, article id 174104Article in journal (Refereed) Published
Abstract [en]

We report on transmission electron microscope beam-induced ferroelectric domain nucleation and motion. While previous observations of this phenomenon have been reported, a consistent theory explaining induced domain response is lacking, and little control over domain behavior has been demonstrated. We identify positive sample charging, a result of Auger and secondary electron emission, as the underlying mechanism driving domain behavior. By converging the electron beam to a focused probe, we demonstrate controlled nucleation of nanoscale domains. Molecular dynamics simulations performed are consistent with experimental results, confirming positive sample charging and reproducing the result of controlled domain nucleation. Furthermore, we discuss the effects of sample geometry and electron irradiation conditions on induced domain response. These findings elucidate past reports of electron beam-induced domain behavior in the transmission electron microscope and provide a path towards more predictive, deterministic domain patterning through electron irradiation.

Place, publisher, year, edition, pages
2016. Vol. 94, no 17, article id 174104
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Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-198962DOI: 10.1103/PhysRevB.94.174104ISI: 000387533200001Scopus ID: 2-s2.0-84995665408OAI: oai:DiVA.org:kth-198962DiVA, id: diva2:1065582
Funder
Swedish Foundation for Strategic Research , FFL090016
Note

 20170116

Available from: 2017-01-16 Created: 2016-12-22 Last updated: 2017-11-29Bibliographically approved

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Zukauskas, AndriusCanalias, Carlota

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