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N. V. KOVAL’, Yu. A. CHERNIY, and Eh. G. PETROV
«Behaviours of On/Off Voltage Switching of Tunnel and Jumping Microcurrents in Nanomolecules»
755–774 (2008)

PACS numbers: 05.60.-k, 72.10.Bg, 73.40.Gk, 73.63.Rt, 82.20.Xr, 82.35.Cd, 85.65.+h

Tunnelling and jumping current behaviour at fast on/off voltage switching for both off-resonant and resonant electron transmission is studied in the system ‘electrode–molecule–electrode’. As shown for the molecule having a single active molecular orbital, taken as an example, in the case when links of this molecule with the electrodes are not identical, on/off currents can be higher by several orders of magnitude than stationary currents through the molecule. Switching-on/off currents are especially large at resonant transmission. This effect is caused by kinetic recharge of molecule that is associated with inelastic jumping processes among the molecule and the electrodes.