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초록
We observed the nanoscale retention dynamics of polycrystalline PbTiO3 nanotubes using piezoresponse force microscopy. We found that the retention loss of the nanodot domains on the nanotubes showed the stretched exponential relaxation behaviors with stretched exponential factor n being less than 1 (0.523 and 0.692), which are similar to the thin films. In addition, the nanodot domains showed a diverse relaxation time constant tau due to different remnant polarization of each dot domains.
키워드
retention; ferroelectrics; nanotubes; piezoresponse force microscopy; PbTiO3; Nanostructured materials; Nanotechnology; Relaxation processes; Nanotubes; Nano scale; Nanodots; Piezoresponse force microscopy; Polycrystalline; Relaxation time constant; Remnant polarizations; Retention; Retention loss; Stretched exponential; Stretched exponential relaxations
- 제목
- Nanoscale retention-loss dynamics of polycrystalline PbTiO3 nanotubes
- 저자
- Choi, Hyunwoo; Kim, Yunseok; Hong, Seungbum; Sung, Tae-Hyun; Shin, Hyunjung; No, Kwangsoo
- 발행일
- 2011-08
- 유형
- Article
- 권
- 5
- 호
- 8
- 페이지
- 289 ~ 291