Investigation on the Pyrazine Molecular Junction Studied by Conductance Measurement and Near Edge X-ray Absorption Fine Structure

被引：3
|
作者：
Kaneko, Satoshi [1 ]
Kiguchi, Manabu [1 ]
机构：
[1] Tokyo Inst Technol, Grad Sch Sci & Engn, Dept Chem, Tokyo 1528551, Japan
来源：
FULLERENES NANOTUBES AND CARBON NANOSTRUCTURES | 2014年 / 22卷 / 1-3期
关键词：
Pyrazine; single molecular junction; electric conductance; near edge X-ray absorption fine structure; mechanically controllable break junction; METAL-ELECTRODES; ANCHORING GROUPS; SINGLE; PYRIDINE; BENZENE;
D O I：
10.1080/1536383X.2013.798723
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A pyrazine molecular junction was investigated using mechanically controllable break junction (MCBJ) technique at 10 K. The conductance measurements revealed the single pyrazine molecular junctions showed two distinct conductance values of 0.27 +/- 0.04 and 1.0 +/- 0.2 G(0) (2e(2)/h). The conductance value of the single pyrazine molecular junction was comparable with that of the metal atomic junction. The interface between pyrazine molecule and Pt surface was investigated by near edge X-ray absorption fine structure (NEXAFS). The broadening of the * peak in N K-edge NEXAFS spectra suggested that the pyrazine molecule connected to Pt surface via a nitrogen atom. Based on the measurements of the conductance and NEXAFS, we could propose the structural models of two distinct conductance states for the single pyrazine molecular junction.
引用
收藏
页码：166 / 172
页数：7
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