Nanowires and Nanoribbons of Charge-Density-Wave Conductor NbSe$_{3}$

We report synthesis of nanowires and nanoribbons of the charge- density-wave conductor NbSe$_{3}$ through direct reaction of Nb and Se powders under careful temperature control. The thickness of these nanostructures range from tens of nanometers to a few hundreds nanometers. Their morphologies and crystal structures were studied with scanning electron microscopy, x- ray diffraction and transmission electron microscopy. Four- probe resistivity measurements were conducted to characterize their electronic properties. Significant enhancement in depinning threshold fields was also observed in the nanowires in comparison to the values of the bulk crystals.