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Tytuł artykułu
Autorzy
Wybrane pełne teksty z tego czasopisma
Identyfikatory
Warianty tytułu
Konferencja
Conference New Materials for Magnetoelectronics, Będlewo, 3-6 May 2006
Języki publikacji
Abstrakty
The polaronic transport through molecules weakly connected to metallic electrodes in the nonlinear response regime has been studied. 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. Non-perturbative computational scheme, used in this work, is based on the Green's function theory within the framework of polaron transformation. 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 a self-consistent way. In particular, three different phenomena are discussed in detail resulting from charging in polaronic transport via discrete quantum states: the suppression of the current at higher voltages, negative differential resistance (NDR effect), and rectification.
Wydawca
Czasopismo
Rocznik
Tom
Strony
519--525
Opis fizyczny
Bibliogr. 22 poz.
Twórcy
autor
- Institute of Physics, Adam Mickiewicz University, ul. Umultowska 85, 61-614 Poznań, Poland
Bibliografia
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- [6] ZHOU C., DESHPANDE M.R., REED M.A., JONES II L., TOUR J.M., Appl. Phys. Lett., 71 (1997), 611. Polaronic transport through molecular quantum dots 525
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- [21] WALCZAK K., Physica E, 33 (2006), 110.
- [22] GALPERIN M., RATNER M.A., NITZAN A., Nano Lett., 5 (2005), 125.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPW7-0007-0059