| Autor: |
Kakimi, Atsushi, Okamura, Soichiro, Ando, Shizutoshi, Takeyo Tsukamoto, Takeyo Tsukamoto |
| Zdroj: |
Japanese Journal of Applied Physics; September 1995, Vol. 34 Issue: 9 p5193-5193, 1p |
| Abstrakt: |
Fabrication of ferroelectric Bi4Ti3O12thin films was carried out by spin-coating pyrolysis of Bi and Ti naphthenates and successive heat treatment in O2gas at various pressures. Heat treatment in O2gas at high pressure was effective for the fabrication of c-axis oriented Bi4Ti3O12thin films with a smooth surface and improvement of their electric properties. The thin film heat-treated at the O2gas pressure of 4.0×105Pa was a single phase of Bi4Ti3O12completely oriented along the c-axis with good ferroelectric properties at room temperature: coercive field of 23 kV/cm, remanent polarization of 1.9 µ C/cm2, dielectric constant of 45, loss of 0.01 and leakage current density on the order of 10-9A/cm2. The remanent polarization of the thin film was kept constant up to the polarization reversal at 1×107cycles. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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