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http://elar.urfu.ru/handle/10995/118128
Title: | Symmetry breaking and electrical frustration during tip-induced polarization switching in the nonpolar cut of lithium niobate single crystals |
Authors: | Ievlev, A. V. Alikin, D. O. Morozovska, A. N. Varenyk, O. V. Eliseev, E. A. Kholkin, A. L. Shur, V. Y. Kalinin, S. V. Шур, В. Я. |
Issue Date: | 2015 |
Publisher: | American Chemical Society |
Citation: | Symmetry breaking and electrical frustration during tip-induced polarization switching in the nonpolar cut of lithium niobate single crystals / A. V. Ievlev, D. O. Alikin, A. N. Morozovska et al. // ACS Nano. — 2015. — Vol. 9. — Iss. 1. — P. 769-777. |
Abstract: | Polarization switching in ferroelectric materials is governed by a delicate interplay between bulk polarization dynamics and screening processes at surfaces and domain walls. Here we explore the mechanism of tip-induced polarization switching at nonpolar cuts of uniaxial ferroelectrics. In this case, the in-plane component of the polarization vector switches, allowing for detailed observations of the resultant domain morphologies. We observe a surprising variability of resultant domain morphologies stemming from a fundamental instability of the formed charged domain wall and associated electric frustration. In particular, we demonstrate that controlling the vertical tip position allows the polarity of the switching to be controlled. This represents a very unusual form of symmetry breaking where mechanical motion in the vertical direction controls the lateral domain growth. The implication of these studies for ferroelectric devices and domain wall electronics are discussed. © 2014 American Chemical Society. |
Keywords: | DOMAIN STRUCTURE FERROELECTRIC LITHIUM NIOBATE POLARIZATION SWITCHING SCANNING PROBE MICROSCOPY SYMMETRY BREAKING CRYSTAL SYMMETRY FERROELECTRIC MATERIALS FERROELECTRICITY LITHIUM MORPHOLOGY NIOBIUM COMPOUNDS OPTICAL SWITCHES POLARIZATION SCANNING PROBE MICROSCOPY SINGLE CRYSTALS SWITCHING DOMAIN STRUCTURE IN-PLANE COMPONENTS LITHIUM NIOBATE LITHIUM NIOBATE SINGLE CRYSTALS POLARIZATION DYNAMICS POLARIZATION SWITCHING POLARIZATION VECTORS SYMMETRY-BREAKING DOMAIN WALLS |
URI: | http://elar.urfu.ru/handle/10995/118128 |
Access: | info:eu-repo/semantics/openAccess |
SCOPUS ID: | 84921806528 |
PURE ID: | 373193 |
ISSN: | 19360851 |
DOI: | 10.1021/nn506268g |
Appears in Collections: | Научные публикации ученых УрФУ, проиндексированные в SCOPUS и WoS CC |
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