[14a-A23-1~10] 6.1 Ferroelectric thin films

[14a-A23-9] Asymmetric Domain Switching in VDF/TeFE Copolymer Thin Films

〇Yuuta Nakagawa¹, Naoto Enomoto¹, Yoichiro Hashizume¹, Takashi Nakajima¹, Alexei Gruverman², Soichiro Okamura¹ (1.Tokyo Univ. of Sci., 2.Univ. of Nebraska-Lincoln)

Keywords:Ferroelectrics, Thin film, Vinylidene fluoride/ Tetrafluoroethylene

In this presentation, we will report on asymmetric domain switching in VDF/TeFE copolymer thin films. We studied a growth of switched domain after application of voltage pulse using piezoresponse force microscopy. As a results, films showed asymmetric domain switching for voltage polarity.