Please use this identifier to cite or link to this item: http://hdl.handle.net/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.
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://hdl.handle.net/10995/118128
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 84921806528
ISSN: 19360851
DOI: 10.1021/nn506268g
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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