| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8036068 | Thin Solid Films | 2013 | 4 Pages |
Abstract
La0.7Sr0.3MnO3/BaTiO3 bilayer films were grown on SrTiO3 (001) substrates buffered with SrRuO3 films as the bottom electrodes by pulsed laser deposition. The quality of the La0.7Sr0.3MnO3/BaTiO3/SrRuO3/SrTiO3 films was analyzed by means of transmission electron microscopy and atomic force microscopy. It is found that each layer grows epitaxially on its bottom layer. La0.7Sr0.3MnO3/BaTiO3 bilayer films exhibit typical ferroelectric hysteresis loops for BaTiO3 films with the remnant polarization of 16.2 μC/cm2 at driven field of 278 kV/cm and ferromagnetic hysteresis loops for La0.7Sr0.3MnO3 film with the coercive field of about 4 kA/m and the saturation magnetization of 205 kA/m at 295 K. The effect of ferroelectric BaTiO3 layer poling on the resistivity of ferromagnetic La0.7Sr0.3MnO3 layer was also investigated.
Related Topics
Physical Sciences and Engineering
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Authors
X.W. Wang, Y.Q. Zhang, X. Wang, Z.J. Wang, Y.L. Zhu, Z.D. Zhang,