Physics – Condensed Matter – Materials Science
Scientific paper
2009-12-05
SOLID STATE COMMUNICATIONS 149(2009)616-618
Physics
Condensed Matter
Materials Science
3 pages, 2 figures
Scientific paper
By considering an interfacial layer between the electrode and the $BiFeO_{3}$($BFO$) layer, the polarization and the hysteresis behavior of $BFO$ film are simulated. It is found that the non-ferroelectric interface will increase the coercive field, and remarkably suppress the polarization of the ultrathin film under low applied fields. Due to the competition between the interfacial effect and the internal compressive stress, the maximum polarization on the P-E loop of a $BFO$ film can be independent on the film thickness under an adequate applied field.
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