Title of article :
Two-dimensional ferroelectricity and second harmonic generation in PVDF Langmuir–Blodgett films
Author/Authors :
Aktsipetrov، نويسنده , , O.A and Blinov، نويسنده , , L.M and Fridkin، نويسنده , , V.M and Misuryaev، نويسنده , , T.V and Murzina، نويسنده , , T.V and Palto، نويسنده , , S.P and Yudin، نويسنده , , S.G، نويسنده ,
Issue Information :
هفته نامه با شماره پیاپی سال 2000
Abstract :
Two-dimensional (2D) ferroelectricity and 2D ferroelectric–paraelectric phase transitions are experimentally studied, for the first time, by means of optical second harmonic generation (SHG) in ultrathin Langmuir–Blodgett (LB) films of vinylidene fluoride with trifluoroethylene. The temperature dependence of the SHG intensity confirms the existence of two types of 2D ferroelectric–paraelectric phase transition: the first one in the topmost layer of LB films and the other, almost thickness independent, in the bulk of ferroelectric LB films.
Keywords :
Surface thermodynamics (including phase transitions) , surface recombination , Surface electrical transport (surface conductivity , etc.) , second harmonic generation
Journal title :
Surface Science
Journal title :
Surface Science
