Model of electron tunneling coupled to torsional vibrations: Exact solution and study of performance of approximation methods

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F14%3A10290432" target="_blank" >RIV/00216208:11320/14:10290432 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.physe.2014.05.008" target="_blank" >http://dx.doi.org/10.1016/j.physe.2014.05.008</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.physe.2014.05.008" target="_blank" >10.1016/j.physe.2014.05.008</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Model of electron tunneling coupled to torsional vibrations: Exact solution and study of performance of approximation methods

Popis výsledku v původním jazyce

A two dimensional model for the electron interaction with molecular vibrations in molecular junctions is proposed. Alternatively the model can be applied to tunneling through a cylindrical nano structure. The transmission function is calculated accurately numerically. The exact results are then compared with various approximations: (1) completely frozen vibrations for very light molecule, (2) Chase approximation for very heavy molecule, and (3) discrete-state-in-continuum model in resonant regime. The validity of these approximations is discussed in terms of the characteristic Lime stales and coupling strengths. The excitation of the vibrational degree of freedom and the emergence of prominent threshold structures in the strong coupling regime are discussed in more derails.

Název v anglickém jazyce

Model of electron tunneling coupled to torsional vibrations: Exact solution and study of performance of approximation methods

Popis výsledku anglicky

A two dimensional model for the electron interaction with molecular vibrations in molecular junctions is proposed. Alternatively the model can be applied to tunneling through a cylindrical nano structure. The transmission function is calculated accurately numerically. The exact results are then compared with various approximations: (1) completely frozen vibrations for very light molecule, (2) Chase approximation for very heavy molecule, and (3) discrete-state-in-continuum model in resonant regime. The validity of these approximations is discussed in terms of the characteristic Lime stales and coupling strengths. The excitation of the vibrational degree of freedom and the emergence of prominent threshold structures in the strong coupling regime are discussed in more derails.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BE - Teoretická fyzika

OECD FORD obor

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Projekt

<a href="/cs/project/GAP208%2F10%2F1281" target="_blank" >GAP208/10/1281: Vibrační a disociační dynamika molekulárních systémů v elektronovém kontinuu</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Physica E: Low-Dimensional Systems and Nanostructures

ISSN

1386-9477

e-ISSN

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Svazek periodika

63

Číslo periodika v rámci svazku

September 2014

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

9

Strana od-do

36-44

Kód UT WoS článku

000340627000006

EID výsledku v databázi Scopus

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