  In the process of molecular dynamics simulation studies of gold nanowires an
interesting structure is discovered. This is a finite double-wall nanowire with
a large empty core similar to single-wall and double-wall carbon nanotubes. The
structure of the 16-10 gold nanotube is studied at the room temperature. An
investigation of the high-temperature stability has also been carried out. An
unusual inward evaporation of atoms from cylindrical liquid walls is found at
T>= 1200 K.
