Metal-insulator transition in stable one-dimensional arrangements of single gold atoms
Metal-insulator transition in stable one-dimensional arrangements of single gold atoms
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DOI：
10.1143/jjap.40.l71
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发表时间：
2001-01-15
期刊：
影响因子：
--
通讯作者：
Fujisawa, S
中科院分区：
文献类型：
--
作者：
Kizuka, T;Umehara, S;Fujisawa, S
利用高分辨率透射电镜同时观察了分离过程中金点触点的原子排列和电导。金单原子的一维排列，即原子线，出现在点接触的两个尖端之间。当长度增加到2.6 nm时，它们是稳定的。金属丝的原子间距离为0.25 ~ 0.31 nm。研究发现，金属-绝缘体在导线中发生转变。
The atomic arrangement and conductance during the separation process of gold point contacts were simultaneously observed in situ by high-resolution transmission electron microscopy. One-dimensional arrangements of gold single atoms, i.e., atomic wires, appeared between two tips at the point contacts. They were stable when their length was increased up to 2.6 nm. The interatomic distance of the wires was 0.25-0.31 nm. Ir was found that metal-insulator transition occurs in the wires.