Scanning tunneling microscopy barrier-height imaging of shockley dislocations on a Au(111) reconstructed surface
Scanning tunneling microscopy barrier-height imaging of shockley dislocations on a Au(111) reconstructed surface
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Au(111) 重建表面上肖克利位错的扫描隧道显微镜势垒高度成像
DOI：
10.1143/jjap.40.4277
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发表时间：
2001
影响因子：
1.5
通讯作者：
Y. Hasegawa
中科院分区：
文献类型：
--
作者：
S. Kurokawa;Yasuharu Yamashita;A. Sakai;Y. Hasegawa
我们对重建的Au（111）表面进行了扫描隧道显微镜势垒高度（STM-BH）成像，发现在人字形重建脊或肖克利位错上，势垒高度局部减小。观测到的黑洞的降低可以用位错核心的电偶极子的形成来解释，这是由Cottrell等人在理论上预测的。(费罗斯。第44（1953）号)在他们关于溶质和位错之间电相互作用的理论中。
We have carried out a scanning tunneling microscopy barrier-height (STM-BH) imaging of a reconstructed Au(111) surface and found that the BH locally decreases on herringbone reconstruction ridges, or Shockley dislocations. The observed lowering of the BH can be explained by the formation of an electric dipole at a dislocation core, which was theoretically predicted by Cottrell et al.. (Philos. Mag. 44 (1953) 1064) in their theory on the electric interaction between solutes and dislocations.