| 학회 |
한국고분자학회 |
| 학술대회 |
2014년 가을 (10/06 ~ 10/08, 제주 ICC) |
| 권호 |
39권 2호 |
| 발표분야 |
고분자가공/복합재료-자가치유 고분자와 복합소재 |
| 제목 |
Co-existence of Ferroelectric and Enhanced Ferromagnetic Properties of BiFeO3 Nanoislands in High Dense Array in Large Area |
| 초록 |
BiFeO3 (BFO) has attracted great interest due to its promising application to magnetoelectric devices. Although ferroelectric and ferromagnetic properties (namely, coupling effect) are shown in bulk or thin film BFO, there is no report on this behavior of nano-sized BFO islands. In this study, we prepared a high density array of BFO nanoislands on a single crystalline substrate by using porous polymer template. The porous template was obtained by plasma etching on a polystyrene film with alumina membrane as an etching mask. The BFO precursor dropped into the porous template, followed by spin-coated. During complete removal of the polymer template at high temperature, the crystal of BFO nanoislands was epitaxially grown on the substrate. Crystal structure and the magnetoelectric coupling of BFO nanoislands were studied by X-ray diffraction, and piezoresponse and magnetic force microscopy, respectively. |
| 저자 |
현승1, 서호성2, 양일규3, 김영석3, 전금혜3, 이봄이3, 김윤석2, 정윤희3, 김진곤3
|
| 소속 |
1POSTECH, 2성균관대, 3postech |
| 키워드 |
BiFeO3; AAO template; enhanced magnetization
|
| E-Mail |
|
