Author:
Kalla Manasa,Chebrolu Narasimha Raju,Chatterjee Ashok
Abstract
Abstract
A single molecular transistor is considered in the presence of electron-electron interaction, electron-phonon interaction, an external magnetic field and dissipation. The quantum transport properties of the system are investigated using the Anderson-Holstein Hamiltonian together with the Caldeira-Leggett model that takes care of the damping effect. The phonons are first removed from the theory by averaging the Hamiltonian with respect to a coherent phonon state and the resultant electronic Hamiltonian is finally solved with the help of the Green function technique due to Keldysh. The spectral function, spin-polarized current densities, differential conductance and spin polarization current are determined.
Funder
Council of Scientific and Industrial Research
CSIR, India (SRF), (09/41
University Grants Commission
Publisher
Springer Science and Business Media LLC
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