Imaging isodensity contours of molecular states with STM

Imaging isodensity contours of molecular states with STM
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使用 STM 对分子状态的等密度轮廓进行成像

DOI:
10.1088/1367-2630/aa969a
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发表时间:
2017
影响因子:
3.3
通讯作者:
G. Schull
G. Schull
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
G. Reecht;B. Heinrich;H. Bulou;F. Scheurer;L. Limot;G. Schull

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我们提出了一种使用扫描隧道显微镜对样品态密度进行成像的改进方法,其中包括绘制表面形貌,同时保持微分电导 (dI/dV) 恒定。当使用这种方法对 Cu(111) 上的典型 C60 分子进行成像时,这些所谓的 iso-dI/dV 图与分子轨道等密度轮廓的理论模拟非常一致。超原子 C60 轨道及其杂交的直接可视化和明确识别是可能的。
We present an improved way for imaging the density of states of a sample with a scanning tunneling microscope, which consists in mapping the surface topography while keeping the differential conductance (dI/dV) constant. When archetypical C60 molecules on Cu(111) are imaged with this method, these so-called iso-dI/dV maps are in excellent agreement with theoretical simulations of the isodensity contours of the molecular orbitals. A direct visualization and unambiguous identification of superatomic C60 orbitals and their hybridization is then possible.
DOI: 10.1103/physrevlett.103.206803
发表时间: 2009-11-13
影响因子: 8.6
作者:
Schull, Guillaume;Frederiksen, Thomas;Berndt, Richard
通讯作者: Berndt, Richard