| Strain effect on ferroelectric behaviors of BaTiO3 nanowires: a molecular dynamics study | |
| Zhang, Yihui ; Hong, Jiawang ; Liu, Bin ; Fang, Daining | |
| 2010-10-12 ; 2010-10-12 | |
| 关键词 | BARIUM-TITANATE LATTICE-DYNAMICS POLARIZATION PHASE SIZE PEROVSKITES NANOFILMS CRYSTALS Engineering, Multidisciplinary Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied |
| 中文摘要 | In this paper, a molecular dynamics method is utilized to investigate the strain effect on the polarization distribution, piezoelectric coefficient, and hysteresis behaviors of BaTiO3 nanowires. The axial polarization changes almost linearly with the strain over a relatively large range, and the ferroelectricity vanishes under a critical compressive strain. With the nanowire becoming thicker, the piezoelectric coefficient increases, and approaches its counterpart for bulk material when the diameter is larger than 2.4 nm. It is also revealed that a pre-tension strain can induce the emergence of a stepwise hysteresis loop while a pre-compression strain can lead to the disappearance of the stepwise shape. Furthermore, the strain effect and size effect are found to play some equivalent roles in the ferroelectric properties of BaTiO3 nanowires. |
| 语种 | 英语 ; 英语 |
| 出版者 | IOP PUBLISHING LTD ; BRISTOL ; DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/79142]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | Zhang, Yihui,Hong, Jiawang,Liu, Bin,et al. Strain effect on ferroelectric behaviors of BaTiO3 nanowires: a molecular dynamics study[J],2010, 2010. |
| APA | Zhang, Yihui,Hong, Jiawang,Liu, Bin,&Fang, Daining.(2010).Strain effect on ferroelectric behaviors of BaTiO3 nanowires: a molecular dynamics study.. |
| MLA | Zhang, Yihui,et al."Strain effect on ferroelectric behaviors of BaTiO3 nanowires: a molecular dynamics study".(2010). |
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