Self-consistent theory of nanodomain formation on nonpolar surfaces of ferroelectrics / Morozovska Anna N.,Ievlev Anton V.,Obukhovskii Vyacheslav V.,Fomichov Yevhen,Varenyk Oleksandr V.,Shur Vladimir Ya.,Kalinin Sergei V.,Eliseev Eugene A. // PHYSICAL REVIEW B. - 2016. - V. 93, l. 16.

ISSN/EISSN:

2469-9950 / 2469-9969

Type:

Article

Abstract:

We propose a self-consistent theoretical approach capable of describing the features of the anisotropic nanodomain formation induced by a strongly inhomogeneous electric field of a charged scanning probe microscopy tip on nonpolar cuts of ferroelectrics. We obtained that a threshold field, previously regarded as an isotropic parameter, is an anisotropic function that is specified from the polar properties and lattice pinning anisotropy of a given ferroelectric in a self-consistent way. The proposed method for the calculation of the anisotropic threshold field is not material specific, thus the field should be anisotropic in all ferroelectrics with the spontaneous polarization anisotropy along the main crystallographic directions. The most evident examples are uniaxial ferroelectrics, layered ferroelectric perovskites, and low-symmetry incommensurate ferroelectrics. Obtained results quantitatively describe the differences at several times in the nanodomain length experimentally observed on X and Y cuts of LiNbO3 and can give insight into the anisotropic dynamics of nanoscale polarization reversal in strongly inhomogeneous electric fields.

Author keywords:

ATOMIC-FORCE MICROSCOPE; LITHIUM-NIOBATE; DOMAIN-WALLS; POLARIZATION REVERSAL; PB(ZR,TI)O-3; DIFFRACTION; MECHANISM; DYNAMICS; MOTION; LINBO3

DOI:

10.1103/PhysRevB.93.165439

Web of Science ID:

ISI:000374952800007

Соавторы в МНС:

Другие поля

Поле	Значение
Month	APR 28
Publisher	AMER PHYSICAL SOC
Address	ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
Language	English
Article-Number	165439
EISSN	2469-9969
Keywords-Plus	ATOMIC-FORCE MICROSCOPE; LITHIUM-NIOBATE; DOMAIN-WALLS; POLARIZATION REVERSAL; PB(ZR,TI)O-3; DIFFRACTION; MECHANISM; DYNAMICS; MOTION; LINBO3
Research-Areas	Physics
Web-of-Science-Categories	Physics, Condensed Matter
Author-Email	anna.n.morozovska@gmail.com eugene.a.eliseev@gmail.com
ResearcherID-Numbers	Ievlev, Anton/H-3678-2012 Shur, Vladimir/J-9078-2015
ORCID-Numbers	Ievlev, Anton/0000-0003-3645-0508
Funding-Acknowledgement	National Academy of Sciences of Ukraine {[}35-02-15]; RFBR {[}14-02-90447 Ukr-a]; DOE Office of the Science {[}CNMS2016-061]
Funding-Text	E.A.E. and A.N.M. acknowledge the National Academy of Sciences of Ukraine (Grant No. 35-02-15). V.Y.S. acknowledges RFBR (Grant No. 14-02-90447 Ukr-a). A portion of this research (A.V.I, S.V.K.) was conducted at the Center for Nanophase Materials Sciences (Project No. CNMS2016-061), which is a DOE Office of the Science User Facility. A.N.M. formulated and elaborated the theoretical model, derived the corresponding analytical expressions, and wrote the initial text of the paper with illustrations. A.I. performed the corresponding numerical simulations of the domain shapes and sizes in COMSOL, the numerical results processing and smoothing jointly with O.V.V. Y.M.F. performed the fitting of the COMSOL results by interpolation functions. E.A.E. densely worked on the improvement of the anisotropic threshold field model and correlation with experiment of the obtained theoretical results. A.N.M., A.V.I., V.V.O, V.Y.S., S.V.K. and E.A.E. worked on the physical interpretation of the obtained theoretical results, improvement of the paper text, discussion, and conclusions.
Number-of-Cited-References	54
Usage-Count-Last-180-days	4
Usage-Count-Since-2013	24
Journal-ISO	Phys. Rev. B
Doc-Delivery-Number	DK5IE