Ferroelectricity of single-crystalline, monodisperse lead zirconate titanate nanoparticles of 9 nm in diameter

Kwang Soo Seol; Kazuo Takeuchi; Yoshimichi Ohki
September 2004
Applied Physics Letters;9/20/2004, Vol. 85 Issue 12, p2325
Academic Journal
Ferroelectric hysteresis at approximately 20°C is measured in a lead zirconate titanate film prepared by stacking monodisperse and perovskite particles 9 nm in diameter. The particle-stacked film possesses a remanent polarization of 4.5 μC/cm2 and an apparent coercive field of 250 kV/cm. This result demonstrates that particulate lead zirconate titanate of 9 nm in diameter retains ferroelectricity even at room temperature.


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