Počet záznamů: 1
Single molecule bridge as a testing ground for using NGF outside of the steady current regime
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SYSNO ASEP 0341564 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Single molecule bridge as a testing ground for using NGF outside of the steady current regime Tvůrce(i) Velický, B. (CZ)
Kalvová, Anděla (FZU-D) RID, ORCID
Špička, Václav (FZU-D) RID, ORCIDCelkový počet autorů 3 Zdroj.dok. Physica E: Low-Dimensional Systems and Nanostructures. - : Elsevier - ISSN 1386-9477
Roč. 42, č. 3 (2010), s. 539-549Poč.str. 11 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova NGF ; initial conditions ; orrelations ; transients ; molecular bridge Vědní obor RIV BM - Fyzika pevných látek a magnetismus CEP GA202/08/0361 GA ČR - Grantová agentura ČR CEZ AV0Z10100520 - FZU-D (2005-2011) AV0Z10100521 - FZU-D (2005-2011) UT WOS 000274954500057 DOI 10.1016/j.physe.2009.08.006 Anotace The simplest nanoscopic system, a molecular bridge consisting of a molecular island with one or few electronic or vibronic levels coupled to non-interacting leads can be treated using non-equilibrium Green's function (NGF). We follow the well known procedure of Jauho, Wingreen and Meir (JWM). In the present work, we concentrate on the litle investigated transient behavior of the molecular bridge undergoing abrupt changes. The transient process depends on the initial conditions at a finite time which may incorporate initial correlations. As an example, we study the electron response to sudden connecting the molecule to one or both leads. We obtain a complete solution for the transient NGF for arbitrary "initial correlations" represented by off-diagonal coherences between the initial electron state of the island and of the leads. Pracoviště Fyzikální ústav Kontakt Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Rok sběru 2011
Počet záznamů: 1