Inelastic effects in Aharonov-Bohm molecular interferometers


Hod, O. ; Baer, R. ; Rabani, E. Inelastic effects in Aharonov-Bohm molecular interferometers. Phys. Rev. Lett. 2006, 97, 266803.
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Inelastic effects arising from electron-phonon coupling in molecular Aharonov-Bohm (AB) interferometers are studied using the nonequilibrium Green's function method. Results for the magnetoconductance are compared for different values of the electron-phonon coupling strength. At low-bias voltages, the coupling to the phonons does not change the lifetime and leads mainly to scattering phase shifts of the conducting electrons. As a result of these dephasing processes, the magnetoconductance of the molecular AB interferometer becomes more sensitive to the threading magnetic flux as the electron-phonon coupling is increased, opposite to the behavior of an electric gate.



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