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Simultaneous atomic-resolution flexural and torsional imaging in liquid by frequency modulation atomic force microscopy

机译:频率调制原子力显微镜液体在液体中同时的原子分辨率弯曲和扭转成像

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摘要

Liquid-environment frequency modulation atomic force microscopy (FM-AFM) is a powerful nanotool that can investigate phenomena occurring at solid-liquid interfaces in atomic-scale. To extend its function, we have developed FM-AFM system for simultaneous detection of vertical and lateral tip-sample interaction forces in liquid. Owing to tip-sample distance regulation by using a vertical force as a z-feedback signal, we succeeded in detecting a lateral force stably without full contact of a tip to a sample surface. This enabled simultaneous atomic-resolution flexural and torsional imaging in liquid. We demonstrated that the torsional images, which show different contrast pattern with that of the conventional topographic (flexural) images, emphasize specific structures of the topmost surface such as protruding atoms. (C) 2020 The Japan Society of Applied Physics
机译:液体环境调频原子力显微镜(FM-AFM)是一种强大的纳米工具,可以调查原子尺度的固液界面处发生的现象。为了扩展其功能,我们开发了用于同时检测液体中的垂直和横向尖端样品相互作用力的FM-AFM系统。由于尖端 - 采样距离调节通过使用垂直力作为Z-反馈信号,我们成功地稳定地检测横向力而不完全接触尖端到样品表面。这种使液体同时的原子分辨率弯曲和扭转成像。我们证明,扭转图像,其显示具有传统地形(弯曲)图像的不同对比度模式,强调最顶部表面的特定结构,例如突出原子。 (c)2020日本应用物理学会

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  • 来源
    《Japanese journal of applied physics》 |2020年第2020期|SIII01.1-SIII01.5|共5页
  • 作者单位

    Saitama Univ Grad Sch Sci & Engn Sakura Ku Shimo Okubo 255 Saitama 3388570 Japan;

    Saitama Univ Grad Sch Sci & Engn Sakura Ku Shimo Okubo 255 Saitama 3388570 Japan;

    Saitama Univ Grad Sch Sci & Engn Sakura Ku Shimo Okubo 255 Saitama 3388570 Japan;

    Saitama Univ Grad Sch Sci & Engn Sakura Ku Shimo Okubo 255 Saitama 3388570 Japan;

    Saitama Univ Grad Sch Sci & Engn Sakura Ku Shimo Okubo 255 Saitama 3388570 Japan;

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