Identifying the absolute orientation of a low-symmetry surface in real space
Identifying the absolute orientation of a low-symmetry surface in real space
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识别真实空间中低对称性表面的绝对方向
DOI：
10.1103/physrevb.90.195405
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发表时间：
2014
影响因子：
3.7
通讯作者：
Philipp Rahe
中科院分区：
文献类型：
--
作者：
Stefan Kuhn;Markus Kittelmann;Yoshiaki Sugimoto;Masayuki Abe;Angelika Kühnle;Philipp Rahe
我们展示了在绝缘低对称性基底（即方解石表面）上获得的原子尺度力相互作用数据。成像物种沿垂直轴明显不对称，这将被识别为纯粹有吸引力的短程相互作用力的倾斜带。通过光学方法独立测定绝对表面取向表明，观察到的不对称性与表面内碳酸酯基团的倾斜有关，而后者又与表面取向相关。因此，我们基于非接触原子力显微镜的工作提出了低对称性表面绝对方向的确定。
We present atomic-scale force interaction data acquired on an insulating low-symmetry substrate, namely the calcitesurface. A pronounced asymmetry of the imaged species is apparent along the vertical axis, which will be identified as a tilted band of purely attractive short-range interaction forces. An independent determination of the absolute surface orientation by an optical method suggests that the observed asymmetry is related to the tilt of the carbonate groups within the surface, which, in turn, is linked to the surface orientation. Thus our noncontact atomic force microscopy based work presents the determination of the absolute orientation for a low-symmetry surface.