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Critical size in ferroelectric nanostructures


Federal Scientific Research Center "Crystallography and Photonics", Russian Academy of Sciences, Shubnikov Institute of Crystallography, Russian Academy of Sciences, Leninskii prosp. 59, Moscow, 119333, Russian Federaion

Recently, several attempts have been made to determine the critical size in ferroelectricity. Due to the development of ferroelectric nanostructure technology, this fundamental problem had also become crucial for applied research. It is shown that although the theory predicts the existence of a finite critical size, ferroelectric polarization and its switching can be observed in monolayer films, at least in the case of ferroelectric vinylidene fluoride-trifluoroethylene copolymer P[VDF-TrFE] films prepared by the Langmuir-Blodgett method. The experimental search for the critical size in perovskite ferroelectrics is briefly reviewed. It is shown that the Landau-Ginzburg theory predicts the critical size to be infinitely small if the extrinsic effect of the film-electrode strain mismatch is taken into account. Special features of the switching dynamics of ultrathin ferroelectric films are also considered.

Fulltext pdf (337 KB)
Fulltext is also available at DOI: 10.1070/PU2006v049n02ABEH005840
PACS: 05.70.Np, 77.80.−e, 77.84.Jd (all)
DOI: 10.1070/PU2006v049n02ABEH005840
URL: https://ufn.ru/en/articles/2006/2/c/
000238659100003
2-s2.0-33745651354
2006PhyU...49..193F
Citation: Fridkin V M "Critical size in ferroelectric nanostructures" Phys. Usp. 49 193–202 (2006)
BibTexBibNote ® (generic)BibNote ® (RIS)Medline RefWorks
RT Journal
T1 Critical size in ferroelectric nanostructures
A1 Fridkin,V.M.
PB Physics-Uspekhi
PY 2006
FD 10 Feb, 2006
JF Physics-Uspekhi
JO Phys. Usp.
VO 49
IS 2
SP 193-202
DO 10.1070/PU2006v049n02ABEH005840
LK https://ufn.ru/en/articles/2006/2/c/

Оригинал: Фридкин В М «Критический размер в сегнетоэлектрических наноструктурах» УФН 176 203–212 (2006); DOI: 10.3367/UFNr.0176.200602c.0203

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