Kinetics of nanodomain growth in ferroelectric artificial superlattices

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• 作者：Taekjib Choi ; Bae Ho Park ; Hyunjung Shin ; Jaichan Lee
• 关键词：Ferroelectric materials ; Domain kinetics ; Piezoresponse force microscopy ; Artificial superlattices
• 刊名：Scripta Materialia
• 出版年：2013
• 出版时间：October, 2013
• 年：2013
• 卷：69
• 期：7
• 页码：501-504
• 全文大小：861 K

文摘

We report the kinetics of nanoscale domain growth in ferroelectric PbZrO₃/PbTiO₃ artificial superlattices. Ferroelectric superlattices behave as single ferroelectric materials with only 180¡ã domain structure (monodomain). Domain size increases linearly with the pulse voltage, and is linearly dependent on the logarithmic value of the pulse duration. It was found that ferroelectric superlattices have a relatively high activation field for domain growth and enhanced domain stability, resulting in a long-term retention behavior of more than one month.