Abnormal percolative transport and colossal electroresistance induced by anisotropic strain in (011)-Pr-0.7(Ca0.6Sr0.4)(0.3)MnO3/PMN-PT heterostructure
文献类型：期刊论文
| 作者 | Zhao, YY ; Wang, J ; Kuang, H ; Hu, FX ; Zhang, HR ; Liu, Y ; Zhang, Y ; Wang, SH ; Wu, RR ; Zhang, M ; Bao, LF ; Sun, JR ; Shen, BG |
| 刊名 | SCIENTIFIC REPORTS
 |
| 出版日期 | 2014 |
| 卷号 | 4 |
| ISSN号 | 2045-2322 |
| 通讯作者 | Wang, J (reprint author), Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China. |
| 中文摘要 | Abnormal percolative transport in inhomogeneous systems has drawn increasing interests due to its deviation from the conventional percolation picture. However, its nature is still ambiguous partly due to the difficulty in obtaining controllable abnormal percolative transport behaviors. Here, we report the first observation of electric-field-controlled abnormal percolative transport in (011)-Pr-0.7(Ca0.6Sr0.4)(0.3)MnO3/0.7Pb( Mg1/3Nb2/3)O-3-0.3PbTiO(3) heterostructure. By introducing an electric-field-induced in-plane anisotropic strain-field in a phase separated PCSMO film, we stimulate a significant inverse thermal hysteresis (similar to -17.5 K) and positive colossal electroresistance (similar to 11460%), which is found to be crucially orientation-dependent and completely inconsistent with the well accepted conventional percolation picture. Further investigations reveal that such abnormal inverse hysteresis is strongly related to the preferential formation of ferromagnetic metallic domains caused by in-plane anisotropic strain-field. Meanwhile, it is found that the positive colossal electroresistance should be ascribed to the coactions between the anisotropic strain and the polarization effect from the poling of the substrate which leads to orientation and bias-polarity dependencies for the colossal electroresistance. This work unambiguously evidences the indispensable role of the anisotropic strain-field in driving the abnormal percolative transport and provides a new perspective for well understanding the percolation mechanism in inhomogeneous systems. |
| 资助信息 | National Basic Research of China [2012CB933001, 2014CB643702, 2013CB921700]; National Natural Science Foundation of China [11174345, 11474341, 11074286, 11374348] |
| 语种 | 英语 |
| 公开日期 | 2015-04-14 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/59685]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Zhao, YY,Wang, J,Kuang, H,et al. Abnormal percolative transport and colossal electroresistance induced by anisotropic strain in (011)-Pr-0.7(Ca0.6Sr0.4)(0.3)MnO3/PMN-PT heterostructure[J]. SCIENTIFIC REPORTS,2014,4. |
| APA | Zhao, YY.,Wang, J.,Kuang, H.,Hu, FX.,Zhang, HR.,...&Shen, BG.(2014).Abnormal percolative transport and colossal electroresistance induced by anisotropic strain in (011)-Pr-0.7(Ca0.6Sr0.4)(0.3)MnO3/PMN-PT heterostructure.SCIENTIFIC REPORTS,4. |
| MLA | Zhao, YY,et al."Abnormal percolative transport and colossal electroresistance induced by anisotropic strain in (011)-Pr-0.7(Ca0.6Sr0.4)(0.3)MnO3/PMN-PT heterostructure".SCIENTIFIC REPORTS 4(2014). |
入库方式： OAI收割
来源：物理研究所
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