Highly (110)- and (111)-oriented BiFeO{sub 3} films on BaPbO{sub 3} electrode with Ru or Pt/Ru barrier layers
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan (China)
Highly (110)- and (111)-oriented BiFeO{sub 3} (BFO) films were fabricated with BaPbO{sub 3} (BPO)/Ru and BPO/Pt/Ru as electrode/barrier on Si substrates by rf-magnetron sputtering. The BPO/Ru and BPO/Pt/Ru stacks both induce oriented BFO films and act as diffusion barriers. The (110)- and (111)-oriented BFO films possess excellent ferroelectric properties with only minor leakage. The values of remnant polarization are almost the same, about 42 {mu}C/cm{sup 2}, for (110)- and (111)-oriented BFO films. However, polarization measured under varying pulse widths demonstrates that the switching polarization in (111)-oriented BFO films is higher than in (110)-oriented films. Additionally (111)-oriented BFO films exhibit better retention properties than (110)-oriented films.
- OSTI ID:
- 20971905
- Journal Information:
- Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 18 Vol. 90; ISSN APPLAB; ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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