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Nanoscale Data Recording on an Organic Monolayer Film


  • This work is supported by the National Natural Science Foundation of China (Grant Nos. 50173028, 90201036) and 863 Project (Grant No. 2002 AA302101).


A “y” formed by nine nanoscale recording marks (see Figure) has been made successfully on an organic thin film by applying voltage pulses between a scanning tunneling microscopy (STM) tip and the highly ordered pyrolytic graphite substrate. The average size of the recorded marks is 1.1 nm in diameter, corresponding to a data storage density of ∼ 1013  bits cm–2. The recording mechanism is discussed according to experiment and calculation.

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