About: Motor effect in electron transport through a molecular junction with torsional vibrations

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://prb.aps.org/abstract/PRB/v83/i16/e165446
Description	A model for a molecular junction with internal anharmonic torsional vibrations interacting with an electric current is proposed. The Wangsness-Bloch-Redfield master equation approach is used to determine the stationary reduced density matrix of the molecule. The dependence of the current, excitation energy, and angular momentum of the junction on the applied voltage is studied. Negative differential conductance is observed in the current-voltage characteristics. It is shown that a model with vibrationally dependent coupling to the electrodes, asymmetric with respect to the interchanging of electrodes, leads to a strong correlation between the applied voltage and the angular momentum of the junction. The model thus works as a molecular motor, with the angular momentum controlled by the size and sign of the voltage. A model for a molecular junction with internal anharmonic torsional vibrations interacting with an electric current is proposed. The Wangsness-Bloch-Redfield master equation approach is used to determine the stationary reduced density matrix of the molecule. The dependence of the current, excitation energy, and angular momentum of the junction on the applied voltage is studied. Negative differential conductance is observed in the current-voltage characteristics. It is shown that a model with vibrationally dependent coupling to the electrodes, asymmetric with respect to the interchanging of electrodes, leads to a strong correlation between the applied voltage and the angular momentum of the junction. The model thus works as a molecular motor, with the angular momentum controlled by the size and sign of the voltage. (en)
Title	Motor effect in electron transport through a molecular junction with torsional vibrations Motor effect in electron transport through a molecular junction with torsional vibrations (en)
skos:prefLabel	Motor effect in electron transport through a molecular junction with torsional vibrations Motor effect in electron transport through a molecular junction with torsional vibrations (en)
skos:notation	RIV/00216208:11320/11:10108937!RIV12-GA0-11320___
http://linked.open...avai/predkladatel	Matematicko-fyzikální fakulta
http://linked.open...avai/riv/aktivita	P S
http://linked.open...avai/riv/aktivity	P(GAP208/10/1281), S
http://linked.open...iv/cisloPeriodika	16
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Čížek, Martin Pshenichnyuk, Ivan
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Karlova v Praze / Matematicko-fyzikální fakulta
http://linked.open...dnocenehoVysledku	213844
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/11:10108937
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	torsional vibrations; molecular junction; electron transport; motor effect (en)
http://linked.open.../riv/klicoveSlovo	molecular junction motor effect torsional vibrations electron transport
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[CCAF5225823F]
http://linked.open...i/riv/nazevZdroje	Physical Review B - Condensed Matter and Materials Physics
http://linked.open...in/vavai/riv/obor	BE
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Vibrational and dissociation dynamics of molecular systems in electronic continuum
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	83
http://linked.open...iv/tvurceVysledku	Čížek, Martin Pshenichnyuk, Ivan
http://linked.open...ain/vavai/riv/wos	000290116700007
issn	1098-0121
number of pages	12 (xsd:int)
http://bibframe.org/vocab/doi	10.1103/PhysRevB.83.165446
http://localhost/t...ganizacniJednotka	11320
is http://linked.open...avai/riv/vysledek of	Motor effect in electron transport through a molecular junction with torsional vibrations Motor effect in electron transport through a molecular junction with torsional vibrations

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