Ferroelectric Properties of Individual Barium Titanate Nanowires Investigated by Scanned Probe Microscopy
作者： Wan Soo Yun , Jeffrey J. Urban , Qian Gu , Hongkun Park
DOI: 10.1021/NL015702G
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摘要: We report scanned probe investigations on the ferroelectric properties of individual single-crystalline barium titanate nanowires. show that nonvolatile electric polarization can be reproducibly induced and manipulated these nanowires, thereby demonstrating nanowires as small 10 nm in diameter retain ferroelectricity. The coercive field for reversal is determined to ∼7 kV/cm, retention time exceeds 5 days. These should provide promising materials fundamental nanoscale ferroelectricity, they may also useful memory applications.
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