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
E-mail: gleb_skor@mail.ru

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;
PACS: 73.63.Kv Quantum dots.

Key words: Luttinger liquid, electron transport, polaronic effects.