Franck-Condon Blockade and Giant Fano Factors in Transport through Single Molecules
نویسندگان
چکیده
منابع مشابه
Franck-Condon blockade and giant Fano factors in transport through single molecules.
We show that Franck-Condon physics leads to a significant current suppression at low bias voltages (termed Franck-Condon blockade) in transport through single molecules with strong coupling between electronic and vibrational degrees of freedom. Transport in this regime is characterized by remarkably large Fano factors (10(2)-10(3) for realistic parameters), which arise due to avalanchelike tran...
متن کاملTheory of the Franck-Condon blockade regime
Strong coupling of electronic and vibrational degrees of freedom entails a low-bias suppression of the current through single-molecule devices, termed the Franck-Condon blockade. In the limit of slow vibrational relaxation, transport in the Franck-Condon-blockade regime proceeds via avalanches of large numbers of electrons, which are interrupted by long waiting times without electron transfer. ...
متن کاملSimple Evaluation of Franck-condon Factors and Non-condon Effects in the Morse Potential
The calculation of Franck-Condon factors between different one-dimensional Morse potential eigenstates using a formula derived from the Wigner function is discussed. Our numerical calculations using a very simple program written in Mathematica is compared with other calculations. We show that our results have a similar accuracy as the calculations performed with more sophisticated methods. We d...
متن کاملAsymmetric Franck-Condon factors in suspended carbon nanotube quantum dots
Fabio Cavaliere,1 Eros Mariani,2,3 Renaud Leturcq,4,5 Christoph Stampfer,4,6 and Maura Sassetti1 1CNR-SPIN and Dipartimento di Fisica, Università di Genova, Via Dodecaneso 33, 16146 Genova, Italy 2Institut für Theoretische Physik, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany 3School of Physics, University of Exeter, Stocker Road, Exeter EX4 4QL, United Kingdom 4Laboratory for ...
متن کاملFranck-Condon factors based on anharmonic vibrational wave functions of polyatomic molecules.
Franck-Condon (FC) integrals of polyatomic molecules are computed on the basis of vibrational self-consistent-field (VSCF) or configuration-interaction (VCI) calculations capable of including vibrational anharmonicity to any desired extent (within certain molecular size limits). The anharmonic vibrational wave functions of the initial and final states are expanded unambiguously by harmonic osci...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2005
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.94.206804