The polarization reversal behavior of Pt/Pb (Zr,Ti) O3/Pt and Pt/Al2O3/Pb (Zr,Ti) O3/Pt capacitors was examined according to the reversal direction using transient switching current measurements. The changes in switching resistance according to the polarization reversal direction suggests that during reversal from the upward to downward polarization, nucleation of a reversed domain occurs at the top interface, whereas nucleation occurs at the bottom interface in the opposite case. The extremely high activation energy for the nucleation of a reversed domain can be reduced considerably by electron injection from the by-electrode but not by hole injection.
|Journal||Applied Physics Letters|
|Publication status||Published - 2010 May 24|
Bibliographical noteFunding Information:
This study was supported by the Converging Research Center Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (Grant No. 2009-0081961), and the World Class University (WCU) program through the National Research Foundation of Korea funded by the Ministry of Education, Science and Technology (Grant No. R31-2008-000-10075-0).
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)