Electron confinement to nanoscale Ag islands on Ag(111): A quantitative study
Electron confinement to nanoscale Ag islands on Ag(111): A quantitative study
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DOI：
10.1103/physrevlett.80.3332
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发表时间：
1998-04-13
影响因子：
8.6
通讯作者：
Crampin, S
中科院分区：
文献类型：
--
作者：
Li, JT;Schneider, WD;Crampin, S
横向限制已被认为是一种可能的机制，减少表面态能级和随之而来的金属表面相关性能的修改。迄今为止的研究给出了相互矛盾的帐户的有效性限制，由于在步骤边缘的散射。本文利用低温扫描隧道显微镜和电子结构计算对Ag（111）表面纳米Ag岛的表面态进行了定量研究。这些结果证实了限制图像的有效性，直到最小的岛的尺寸。
Lateral confinement has been suggested as a possible mechanism for depopulation of surface state levels and concomitant modification of metal surface related properties. Studies to date give conflicting accounts of the effectiveness of confinement due to scattering at step edges. We present a quantitative study of surface states on nanoscale Ag islands on Ag(111), using low-temperature scanning tunneling microscopy and electronic structure calculations. These results confirm the validity of the confinement picture down to the smallest of island sizes.