Polaronic transport through molecular quantum dots: charging-induced NDR and rectifying behavior
| dc.creator | Walczak, Kamil | |
| dc.date | 2006-02-08 | |
| dc.date.accessioned | 2026-07-07T08:19:17Z | |
| dc.date.available | 2026-07-07T08:19:17Z | |
| dc.description | Here we study the polaronic transport through molecules weakly connected to metallic electrodes in the nonlinear response regime. Molecule itself is treated as a quantum dot with discrete energy levels, its connection to the electrodes is described within the wide-band approximation, while the charging is incorporated by means of the self-consistent potential. Nonperturbative computational scheme, used in this work, is based on the Green's function theory within the framework of mapping technique (GFT-MT). This method transforms the many-body electron-phonon interaction problem into a one-body multi-channel single-electron scattering problem with occupation of polaron levels calculated in the self-consistent way. In particular, three different phenomena as a result of charging in polaronic transport via discrete quantum states are discussed in detail: the suppression of the current at higher voltages, negative differential resistance (NDR effect), and rectification. | |
| dc.description | 9 pages, 3 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0602213 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0602213 | |
| dc.identifier | Mater. Sci.-Poland 25 (No.2), pp. 519-525 (2007) | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/134713 | |
| dc.subject | Mesoscale and Nanoscale Physics | |
| dc.title | Polaronic transport through molecular quantum dots: charging-induced NDR and rectifying behavior | |
| dc.type | text |