Formation of snowflake domains during fast cooling of lithium tantalate crystals / Shur V. Ya,Kosobokov M. S.,Mingaliev E. A.,Kuznetsov D. K.,Zelenovskiy P. S. // JOURNAL OF APPLIED PHYSICS. - 2016. - V. 119, l. 14.

ISSN/EISSN:

0021-8979 / 1089-7550

Type:

Article

Abstract:

Formation of the original dendrite snowflake-shape domains during fast cooling after heating above phase transition temperature by pulse laser irradiation was revealed in congruent lithium tantalate crystals. The effect was attributed to polarization reversal under the action of spatially nonuniform pyroelectric field. Two stages of the domain shape evolution at the surface were separated: (1) growth of circular domains by sideways motion of the domain walls and (2) backswitching leading to formation of the snowflake domains. The simulated spatial distribution of the pyroelectric field in regular two-dimensional structure was used for an explanation of the obtained results. The backswitching process in the surface layer has been attributed to change of the sign of the pyroelectric field at the domain wall. The snowflake domain shape is caused by the formation of isolated nanodomain fingers and hampering of their merging. (C) 2016 AIP Publishing LLC.

Author keywords:

NIOBATE SINGLE-CRYSTALS; 2ND-HARMONIC GENERATION; FERROELECTRIC DOMAINS; NANODOMAIN STRUCTURES; GREEN LIGHT; HIGH-POWER; LITAO3; LASER; LINBO3; WAVE

DOI:

10.1063/1.4945671

Web of Science ID:

ISI:000379161100014

Соавторы в МНС:

Другие поля

Поле	Значение
Month	APR 14
Publisher	AMER INST PHYSICS
Address	1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
Language	English
Article-Number	144101
EISSN	1089-7550
Keywords-Plus	NIOBATE SINGLE-CRYSTALS; 2ND-HARMONIC GENERATION; FERROELECTRIC DOMAINS; NANODOMAIN STRUCTURES; GREEN LIGHT; HIGH-POWER; LITAO3; LASER; LINBO3; WAVE
Research-Areas	Physics
Web-of-Science-Categories	Physics, Applied
Author-Email	vladimir.shur@urfu.ru
ResearcherID-Numbers	Zelenovskiy, Pavel/L-7480-2016 Mingaliev, Eugene/A-5324-2012 Kuznetsov, Dmitry/K-8081-2015 Shur, Vladimir/J-9078-2015
ORCID-Numbers	Zelenovskiy, Pavel/0000-0003-3895-4785 Mingaliev, Eugene/0000-0003-3926-8402
Funding-Acknowledgement	Russian Scientific Foundation {[}14-12-00826]
Funding-Text	The equipment of the Ural Center for Shared Use ``Modern Nanotechnology{''} of the Ural Federal University has been used. The research was made possible by Russian Scientific Foundation (Grant No. 14-12-00826).
Number-of-Cited-References	46
Usage-Count-Last-180-days	6
Usage-Count-Since-2013	15
Journal-ISO	J. Appl. Phys.
Doc-Delivery-Number	DQ4GC