The First Room-Temperature Ferroelectric Sn Insulator and Its Polarization Switching Kinetics

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• 作者：Yazhong Wang ; Fei-Ting Huang ; Xuan Luo ; Bin Gao and Sang-Wook Cheong
• 刊名：Advanced Materials
• 出版年：2017
• 出版时间：January 11, 2017
• 年：2017
• 卷：29
• 期：2
• 全文大小：1860K
• ISSN：1521-4095

文摘

Sr₃Sn₂O₇ is the first room-temperature ferroelectric Sn insulator with switchable electric polarization. The ferroelastic twin domains are observed using a polarized optical microscope. The polarization hysteresis loop clearly demonstrates the ferroelectric property. Intriguing polarization switching kinetics are observed through an in situ poling process using a dark-field transmission electron microscopy technique.