首页> 外文期刊>St. Petersburg Polytechnic University Journal: Physics and Mathematics >Surface polar nanoregions structure of potassium tantalate doped with lithium obtained at cryogenic temperatures using piezoresponse force microscopy technique
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Surface polar nanoregions structure of potassium tantalate doped with lithium obtained at cryogenic temperatures using piezoresponse force microscopy technique

机译:使用压电响应力显微镜技术在低温温度下获得锂掺杂锂的钽酸钾表面极性纳米导致结构

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In the present work we have used a piezoresponse force microscopy (Pfm) technique for the studyof the polar surface structure of potassium tantalate single crystal doped with li+ ions (KlT-3 %) at low temperatures. The results of our measurements confirmed the existence of polar nanoregions in the temperature range of 10 - 80 K. We obtained a temperature evolution of the nanoregions and estimated theirdimensions. Resolving polar nanoregions structure of KlT-3% crystal in zero-field heating after zero-field cooling regime could indicate the existence of ferroelectric phase transition in this material.
机译:在本工作中,我们使用了压电响应力显微镜(PFM)技术,用于在低温下掺杂有Li +离子(KLT-3%)的钽酸盐单晶的极性表面结构的研究。我们的测量结果证实了在10-80k的温度范围内的极性纳米导致的存在。我们获得了纳米导致的温度演变并估计其二值。在零场冷却状态下,在零场加热中解析KLT-3%晶体的极性纳米结构可以指示该材料中铁电相转变的存在。

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