Abstract
Pure BiFeO3 (BFO), BiFeO3/NiFe2O4 (BFO/NFO) and multi-ion co-doped Bi0.89Sm0.11Fe0.94Mn0.04Cr0.02O3/NiFe2O4 (BSFMC/NFO) thin films have been synthesized by using a sol-gel method. The influences of multi-ion co-doping and NFO layer co-doping on its crystalline structural, leakage current and multiferroic properties are investigated. The results indicate that an asymmetry of J-E curves at negative and positive applied electric fields is clearly observed in the BFO/NFO and BSFMC/NFO films, which is apparently related to the effects of the interface between the BFO and NFO layers. Moreover, improved ferroelectric and ferromagnetic properties are observed in the BSFMC/NFO film simultaneously, e.g. large remanent polarization and saturation magnetization is 66.18 μC/cm2 and 34.20 emu/cm3, respectively.
| Original language | English |
|---|---|
| Pages (from-to) | 27-29 |
| Number of pages | 3 |
| Journal | Materials Letters |
| Volume | 142 |
| DOIs | |
| State | Published - 1 Mar 2015 |
| Externally published | Yes |
Keywords
- Electronic materials
- Ferroelectrics
- Interfaces
- Magnetic materials