Optical second-harmonic-generation probe of two-dimensional ferroelectricity

Authors
Aktsipetrov, OA Misuryaev, TV Murzina, TV Blinov, LM Fridkin, VM Palto, SP
Citation
Oa. Aktsipetrov et al., Optical second-harmonic-generation probe of two-dimensional ferroelectricity, OPTICS LETT, 25(6), 2000, pp. 411-413
Citations number
12
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Optics & Acoustics
Journal title
OPTICS LETTERS
ISSN journal
01469592 → ACNP
Volume
25
Issue
6
Year of publication
2000
Pages
411 - 413
Database
ISI
SICI code
0146-9592(20000315)25:6<411:OSPOTF>2.0.ZU;2-I
Abstract
Optical second-harmonic generation (SHG) is used as a noninvasive probe of two-dimensional (2D) ferroelectricity in Langmuir-Blodgett (LB) films of th e copolymer vinylidene fluoride with trifluoroethylene. The surface 2D ferr oelectric - paraelectric phase transition in the topmost layer of the LB fi lms and a thickness-independent (almost 2D) transition in the bulk of these films are observed in temperature studies of SHG. (C) 2000 Optical Society of America OCIS codes: 190.4350, 190.4710, 190.2620, 240.0310, 310.3840.