Inelastic electron-tunneling spectroscopy of nanoporous gold films
Inelastic electron-tunneling spectroscopy of nanoporous gold films
复制标题
纳米多孔金薄膜的非弹性电子隧道光谱
DOI：
10.1103/physrevb.89.035426
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发表时间：
2014-01-21
影响因子：
3.7
通讯作者：
Xue, Q. K.
中科院分区：
文献类型：
--
作者：
Liu, H. W.;Nishitani, R.;Xue, Q. K.
我们利用双极真空扫描隧道显微镜在低温（4.2K）下研究了纳米多孔金薄膜的局域电子性质。二阶导数扫描隧道光谱显示纳米多孔金膜的等离子体激元峰，其由非弹性隧穿电子激发。我们建议，纳米棒模型是适当的纳米多孔金在纳米尺度上的研究。这些结果支持的三维电子断层扫描分析和理论计算的纳米多孔金与椭球形。
We investigated the localized electronic properties of nanoporous gold films by using an ultrahigh vacuum scanning tunneling microscope at low temperature (4.2 K). Second derivative scanning tunneling spectroscopy shows the plasmon peaks of the nanoporous gold films, which are excited by inelastic tunneling electrons. We propose that the nanorod model is appropriate for nanoporous gold studies at the nanometer scale. These results are supported by a three-dimensional electron tomography analysis and theoretical calculations of nanoporous gold with an ellipsoidal shape.