Dx. Shi et al., Recording at the nanometer scale on p-nitrobenzonitrile thin films by scanning tunneling microscopy, ADVAN MATER, 13(14), 2001, pp. 1103
A data storage density of at least 10(14) bits/cm(2) is possible using p-ni
trobenzonitrile as the data storage medium and scanning tunneling microscop
y (STM) as the recording method. This represents the smallest mark size amo
ng all the organic thin films studied by these authors. The figure shows a
typical STM image of a recorded pattern.