Dielectric relaxation in ultrathin ferroelectric Langmuir-Blodgett films of vinylidene fluoride and trifluorethylene copolymer

✍ Scribed by K.A. Verkhovskaya; A.S Ievlev; A.M. Lotonov; N.D. Gavrilova; V.M. Fridkin

• Book ID: 104079397
• Publisher: Elsevier Science
• Year: 2005
• Tongue: English
• Weight: 178 KB
• Volume: 368
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/j.physb.2005.07.003

✦ Synopsis

Debye-type dielectric relaxation has been revealed for the first time and investigated in the ferroelectric phase of ultrathin (15-45 nm) Langmuir-Blodgett (LB) films of vinylidene fluoride and trifluorethylene copolymer P[VDF-TrFE] with a first-order phase transition. The Cole-Cole plot of e 0 and e 00 and the relaxation time t are investigated in a broad frequency and temperature range. The obtained results reveal a perfect crystalline structure of the ultrathin ferroelectric films.