Magnetic, ferroelectric and magnetoelectric coupling properties of Fe-implanted BaTiO3 films |
| |
| Authors: | X.J. Ye Z.Z. ZhouW. Zhong D.L. Hou H.T. CaoC.T. Au Y.W. Du |
| |
| Affiliation: | a Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, Chinab Division of Functional Materials and Nano Devices, Ningbo Institute of Material Technology and Engineering, The Chinese Academy of Sciences, Ningbo 315201, Chinac Department of Physics, Hebei Normal University, Shijiazhuang 050016, Chinad Department of Chemistry, Hong Kong Baptist University, Hong Kong |
| |
| Abstract: | BaTiO3 (BTO) nano-films were implanted with iron by means of ion-implantation. According to the results of X-ray diffraction (XRD) and Raman analysis, all the films are single-phase with tetragonal structure. Upon the increase of Fe dosage, on one hand, there is a decrease in c/a ratio of the unit cells. As the grain size and surface roughness of the Fe-implanted films decrease, the well crystallized film was obtained. Consequently, both decreasing of coercivity and boosting of magnetization were observed simultaneously. With the decline of the grain size and surface roughness during thermal treatment of the Fe-implanted films, there is an improvement of Fe distribution across the BTO matrix. Consequently, there is a decrease of coercivity and rise of magnetization. Upon the decrease of Fe dosage, on the other, there is a decline in magnetization, and a ferroelectric hysteresis loop is observed at a Fe dosage of 3.0 × 1014 cm− 2. Additionally, the dependence of capacitance on the applied magnetic field and its frequency were also monitored. |
| |
| Keywords: | Barium titanate Iron Implantation Ferromagnetic properties Ferroelectric properties Annealing |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
