Abstract
A single molecular junction, where a single molecule is bridged between metal electrodes, has attracted wide attention since novel properties can appear due to its peculiar geometrical and electronic characters. The single molecular junction has also attracted attention due to its potential application in ultra small electronic devices. In this article, we discuss the fabrication and characterization of the single molecular junction using a model system of the single hydrogen molecular junction. The single hydrogen molecular junction has been characterized by vibration spectroscopy of a single molecule, shot noise and conductance measurements. The single hydrogen molecular wire can be fabricated by stretching the hydrogen molecular junction. Using the single hydrogen molecular junction and wire, the interaction between conduction electron and molecular vibration can be discussed in detail. Finally, we comment on the current topics of the single molecular junction.
