Domain wall orientation and domain shape in KTiOPO4 crystals

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abstract

Domain shape evolution and domain wall motion have been studied in KTiOPO4 (KTP) ferroelectric single crystals using complementary experimental methods. The in situ visualization of domain kinetics has allowed revealing: (1) qualitative change of the domain shape, (2) dependence of the domain wall velocity on its orientation, (3) jump-like domain wall motion caused by domain merging, (4) effect of domain shape stability. The model of domain wall motion driven by generation of elementary steps (kink-pair nucleation) and subsequent kink motion is presented. The decrease in the relative velocity of the approaching parallel domain walls is attributed to electrostatic interaction. The effect of polarization reversal induced by chemical etching is observed. The obtained results are important for the development of domain engineering in the crystals of KTP family. Published by AIP Publishing.

keywords

PERIODICALLY-POLED KTIOPO4; MATCHED 2ND-HARMONIC GENERATION; OPTICAL PARAMETRIC OSCILLATOR; SITU VIDEO OBSERVATION; FLUX-GROWN KTIOPO4; FERROELECTRIC DOMAINS; WAVE-GUIDE; BLUE-LIGHT; LINBO3; FIELD

subject category

Physics

authors

Shur, VY; Vaskina, EM; Pelegova, EV; Chuvakova, MA; Akhmatkhanov, AR; Kizko, OV; Ivanov, M; Kholkin, AL

our authors

foto Andrei Kholkin

Andrei Kholkin

Retired Researcher
foto Maxim Ivanov

Maxim Ivanov

Junior Researcher

Groups

G2 - Photonic, Electronic and Magnetic Materials

Projects

CICECO - Aveiro Institute of Materials (UID/CTM/50011/2013)

acknowledgements

The equipment of the Ural Center for Shared Use

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Publication Details

type
Journal Article
year
2016
journal
APPLIED PHYSICS LETTERS
volume
109
article number
132901
publisher
AMER INST PHYSICS
issn
Mar-51
issue
13
digital object identifier
10.1063/1.4963781
web of science article identifier
WOS:000384747900036

Journal Metrics (JCR 2019)

Journal Impact Factor
3.597
Journal Impact Factor (5 yrs)
3.4
category normalized journal percentile
76.299

Citations

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