| ชื่อเรื่อง | : | Nanoscale polarization relaxation of epitaxial BiFeO3 thin film |
| นักวิจัย | : | Chen, Weigang , You, Lu , Chen, Gaofeng , Chua, Ngeah Theng , Guan, Ong Hock , Zou, Xi , Wang, Junling , Chen, Lang |
| คำค้น | : | DRNTU::Engineering::Materials::Microelectronics and semiconductor materials::Thin films. |
| หน่วยงาน | : | Nanyang Technological University, Singapore |
| ผู้ร่วมงาน | : | - |
| ปีพิมพ์ | : | 2553 |
| อ้างอิง | : | Chen, W., You, L., Chen, G., Chua, N. T., Guan, O. H., Zou, X., & et al. (2010). Nanoscale polarization relaxation of epitaxial BiFeO3 thin film. Thin Solid Films, 518(24), 169-173. , http://hdl.handle.net/10220/7400 , http://dx.doi.org/10.1016/j.tsf.2010.03.089 |
| ที่มา | : | - |
| ความเชี่ยวชาญ | : | - |
| ความสัมพันธ์ | : | Thin solid films |
| ขอบเขตของเนื้อหา | : | - |
| บทคัดย่อ/คำอธิบาย | : | The polarization relaxation phenomena in a 40-nm-thick epitaxial BiFeO3 thin film grown on a (001) SrTiO3 substrate with SrRuO3 bottom electrode, was studied in nanoscale using dual-frequency resonance-tracking piezoresponse force microscopy. The as-grown film shows highly irregular mosaic domain pattern. The nucleation of reversed domains followed by domain wall propagation and domain coalesce was observed during relaxations. The polarization relaxation follows a stretched exponential model f = 1 - e^(-k(t-t0)^n) with parameters t0 = 2894 s, n =0.50 and k =6.04e-4. Local polar defects act as nucleation centers and the time-dependent depolarization field is the driving force for polarization relaxation. |
| บรรณานุกรม | : |
Chen, Weigang , You, Lu , Chen, Gaofeng , Chua, Ngeah Theng , Guan, Ong Hock , Zou, Xi , Wang, Junling , Chen, Lang . (2553). Nanoscale polarization relaxation of epitaxial BiFeO3 thin film.
กรุงเทพมหานคร : Nanyang Technological University, Singapore. Chen, Weigang , You, Lu , Chen, Gaofeng , Chua, Ngeah Theng , Guan, Ong Hock , Zou, Xi , Wang, Junling , Chen, Lang . 2553. "Nanoscale polarization relaxation of epitaxial BiFeO3 thin film".
กรุงเทพมหานคร : Nanyang Technological University, Singapore. Chen, Weigang , You, Lu , Chen, Gaofeng , Chua, Ngeah Theng , Guan, Ong Hock , Zou, Xi , Wang, Junling , Chen, Lang . "Nanoscale polarization relaxation of epitaxial BiFeO3 thin film."
กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2553. Print. Chen, Weigang , You, Lu , Chen, Gaofeng , Chua, Ngeah Theng , Guan, Ong Hock , Zou, Xi , Wang, Junling , Chen, Lang . Nanoscale polarization relaxation of epitaxial BiFeO3 thin film. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2553.
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