Synthesis of SWCNT Rings Made by Two Y Junctions and Possible Applications in Electron Interferometry

The formation of ringlike junction structures made from single-walled carbon nanotubes has been observed by transmission electron microscopy (see image). A merging process of asymmetric into symmetric rings using carbon nanotubes was investigated under electron-beam irradiation at high temperatures. Based upon these observations, a rich variety of tailor-made double-slit interferometers with defined ring symmetries can be realized.