Domain Wall Architecture in Tetragonal Ferroelectric Thin Films

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• 作者：Gabriele De Luca ; Marta D. Rossell ; Jakob Schaab ; Nathalie Viart ; Manfred Fiebig and Morgan Trassin
• 刊名：Advanced Materials
• 出版年：2017
• 出版时间：February 17, 2017
• 年：2017
• 卷：29
• 期：7
• 全文大小：1825K
• ISSN：1521-4095

文摘

Non-Ising-like 180° ferroelectric domain wall architecture and domain distribution in tetragonal PbZr_xTi_1−xO₃ thin films are probed using a combination of optical second harmonic generation and scanning transmission electron microscopy. In the remnant state, a specific nonlinear optical signature of tilted 180° domain walls corresponding to a mixed Ising–Néel-type rotation of polarization across the wall is shown.