| 학회 |
한국고분자학회 |
| 학술대회 |
2011년 봄 (04/07 ~ 04/08, 대전컨벤션센터) |
| 권호 |
36권 1호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Study on Critical Size of 0-dimensional Ferroelectric Nanostructure |
| 초록 |
It has been well known that nanostructured materials can have distinct properties from its bulk counter parts. For ferroelectric materials, as characteristic size decreases diminishment of Curie temperature has been predicted and experimentally observed. It’s also anticipated that below certain physical dimension, spontaneous polarization becomes unstable and phase transition from ferroelectric to paraelectric occurs. Theoretical calculations suggest this certain size, also called critical size would exist in sub-10 nm region. Yet, actual critical size hasn’t been reported due to accessibility to the structure and accuracy of measurement methods. In previous report, we reported that nanosialnds whose average diameter around 22 nm showed ferroelectricity. We aimed to track down critical size of 0-dimensional ferroelectric nanostructure by using block copolymer self-assembly. |
| 저자 |
김영석1, 한희2, 김윤석3, Marin Alexe3, 이우2, 김진곤1
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| 소속 |
1포항공대, 2KRISS, 3MPI of Microstructure Physics |
| 키워드 |
블록 공중합체; 마이셀; 강유전체; 나노구조; 임계크기
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| E-Mail |
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