| 학회 | 한국화학공학회 |
| 학술대회 | 2018년 봄 (04/25 ~ 04/27, 창원컨벤션센터) |
| 권호 | 24권 1호, p.686 |
| 발표분야 | 재료 |
| 제목 | Development of BaTiO3/CoFe2O4 thin films for functional magnetoelectric devices |
| 초록 | Magnetoelectric effect coexisting ferroelectric and ferromagnetic orders has recently been attracted due to potential applications such as magneto-electric or electro-magnetic functional sensors, transducers, actuators even drug delivery systems. In particular, 2-2 nanostructures were found to exhibit strong magnetoelectric values of 6 V/cm·Oe at resonance frequency of 90 kHz. However, 2-2 magnetoelectric thin films less than 1 μm thickness possessed clamping effect between thin films and substrates, which can be a limitation of effective piezoelectric bending. In this study, BaTiO3/CoFe2O4 films with cylinder/matrix system were successfully developed to minimize clamping effect in magnetoelectric thin films. First, vertically aligned BaTiO3 nanotubes were synthesized with mean diameter of 100 nm and wall distance of 50 nm via two-step Ti anodization and topochemical reaction. Then, BaTiO3/CoFe2O4 films were prepared by sol-gel coating of CoFe2O4 with pyrolysis. This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2016R1C1B1010884). |
| 저자 | 노병일, 양수철 |
| 소속 | 동아대 |
| 키워드 | 화공소재 전반 |
| 원문파일 | 초록 보기 |
