Low Temperature Physics: 34, 858 (2008); https://doi.org/10.1063/1.3006393 (7 pages)
Физика Низких Температур: Том 34, Выпуск 10 (Октябрь 2008), c. 1086-1093 ( к оглавлению , назад )
Luttinger liquid and polaronic effects in electron transport through a molecular transistor
G.A. Skorobagat’ko and I.V. Krive
B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine 47 Lenin Ave., Kharkov 61103, Ukraine
Received June 4, 2008
Electron transport through a single-level quantum weakly dot coupled to Luttinger liquid leads is considered in the master equation approach. It is shown that for a weak or moderately strong interaction the differential conductance demonstrates resonant-like behavior as a function of bias and gate voltages. The inelastic channels associated with vibron-assisted electron tunnelling can even dominate electron transport for a certain region of interaction strength. In the limit of strong interaction resonant behavior disappears and the differential conductance scales as a power low on temperature (linear regime) or on bias voltage (nonlinear regime).
PACS: 73.63.–b Electronic transport in nanoscale materials and structures;
Key words: Luttinger liquid, electron transport, polaronic effects.