Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/98748
Title: | Transport in quantum dot stacks using the transfer Hamiltonian method in self-consistent field regime |
Author: | Illera Robles, Sergio Prades García, Juan Daniel Cirera Hernández, Albert Cornet i Calveras, Albert |
Keywords: | Sistemes hamiltonians Semiconductors Teoria quàntica Estructura electrònica Hamiltonian systems Semiconductors Quantum theory Electronic structure |
Issue Date: | 24-Mar-2012 |
Publisher: | Institute of Physics (IOP) |
Abstract: | The non-coherent rate equation approach to the electrical transport in a serial quantum dot system is presented. The charge density in each quantum dot is obtained using the transfer Hamiltonian formalism for the current expressions. The interactions between the quantum dots and between the quantum dots and the electrodes are introduced by transition rates and capacitive couplings. Within this framework analytical expressions for the current and the charge in each quantum dot are presented. The effects of the local potential are computed within the self-consistent field regime. Despite the simplicity of the model, well-known effects are satisfactorily explained and reproduced. We also show how this approach can be extended into a more general case. |
Note: | Versió postprint del document publicat a: http://dx.doi.org/10.1209/0295-5075/98/17003 |
It is part of: | EPL, 2012, vol. 98, num. 1, p. 17003 |
URI: | http://hdl.handle.net/2445/98748 |
Related resource: | http://dx.doi.org/10.1209/0295-5075/98/17003 |
ISSN: | 0295-5075 |
Appears in Collections: | Articles publicats en revistes (Enginyeria Electrònica i Biomèdica) Publicacions de projectes de recerca finançats per la UE |
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