Indentation induced mechanical and electrical response in ferroelectric crystal investigated by acoustic mode AFM
Indentation induced mechanical and electrical response in ferroelectric crystal investigated by acoustic mode AFM
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DOI：
10.1002/pssa.200409082
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发表时间：
2005-01
期刊：
影响因子：
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通讯作者：
H. Yu;H. Zeng;X. D. Ma;R. Q. Chu;G. Li;H. Luo;Q. R. Yin
中科院分区：
文献类型：
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作者：
H. Yu;H. Zeng;X. D. Ma;R. Q. Chu;G. Li;H. Luo;Q. R. Yin
利用在原子力显微镜基础上发展起来的低频扫描探针声学显微镜，研究了PbTiO_3-PbTiO_3单晶对微压入的机械响应和电学响应。有三种方法可以释放由压痕产生的应力。塑性变形发生在压痕正下方和压痕对角线上。此外，在压痕表面还观察到了压痕诱导的微裂纹和相互垂直的新的非180°磁畴结构。在实验结果的基础上，讨论了裂纹与域图案的关系。(2015Wiley-VCH Verlag GmbH&Co.KGaA，Weinheim)
The mechanical and electrical response of Pb (Mg1/3Nb2/3)‐ O3–PbTiO3 single crystals to micro‐indentation are investigated using the newly developed low frequency scanning probe acoustic microscopy which is based on the atomic force microscope. There are three ways to release the stress produced by indentation. Plastic deformation emerged directly underneath the indentor and along the indentation diagonals. In addition, indentation‐induced micro‐cracks and new non‐180° domain structures which are perpendicular to each other are also observed in the indented surface. Based on the experimental results, the relationship between the cracks and the domain patterns was discussed. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)