The effect of an internal electric field built up along the Poly(dA)-poly(dT) DNA molecule on the electron transport in the molecule has been studied. The electric field dependent electron hopping amplitude has been used in the tight-binding Hamiltonian model of a Poly(dA)-poly(dT) DNA molecule. Green's function technique is used in calculating electron transmission probability, which is then used for computing current as a function of voltage by employing the Landauer-Büttiker formalism. It is observed that the internal electric field can cause the current decreases with voltages. The current reaches its maximum at a lower voltage as the internal electric field increases.
|Journal||Journal of Physics: Conference Series|
|Publication status||Published - 8 Mar 2021|
|Event||10th International Conference on Theoretical and Applied Physics, ICTAP 2020 - Mataram, West Nusa Tenggara, Indonesia|
Duration: 20 Nov 2020 → 22 Nov 2020