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@ARTICLE{Khedri:857883,
author = {Khedri, A. and Costi, Theodoulos and Meden, V.},
title = {{N}onequilibrium thermoelectric transport through vibrating
molecular quantum dots},
journal = {Physical review / B},
volume = {98},
number = {19},
issn = {2469-9950},
address = {Woodbury, NY},
publisher = {Inst.},
reportid = {FZJ-2018-06837},
pages = {195138},
year = {2018},
abstract = {We employ the functional renormalization group to study the
effects of phonon-assisted tunneling on the nonequilibrium
steady-state transport through a single level molecular
quantum dot coupled to electronic leads. Within the
framework of the spinless Anderson-Holstein model we focus
on small to intermediate electron-phonon couplings and we
explore the evolution from the adiabatic to the
antiadiabatic limit and also from the low-temperature
nonperturbative regime to the high-temperature perturbative
one. We identify the phononic signatures in the bias-voltage
dependence of the electrical current and the differential
conductance. Considering a temperature gradient between the
electronic leads we further investigate the interplay
between the transport of charge and heat. Within the linear
response regime we compare the temperature dependence of
various thermoelectric coefficients to our earlier results
obtained within the numerical renormalization group [Phys.
Rev. B 96, 195156 (2017)]. Beyond the linear response regime
in the context of thermoelectric generators we discuss the
influence of molecular vibrations on the output power and
the efficiency. We find that in the antiadiabatic limit the
thermoelectric efficiency can be significantly enhanced.},
cin = {IAS-3 / PGI-2 / JARA-FIT / JARA-HPC},
ddc = {530},
cid = {I:(DE-Juel1)IAS-3-20090406 / I:(DE-Juel1)PGI-2-20110106 /
$I:(DE-82)080009_20140620$ / $I:(DE-82)080012_20140620$},
pnm = {142 - Controlling Spin-Based Phenomena (POF3-142) /
Thermoelectric properties of molecular quantum dots and
time-dependent response of quantum dots $(jiff23_20140501)$},
pid = {G:(DE-HGF)POF3-142 / $G:(DE-Juel1)jiff23_20140501$},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000451606200001},
doi = {10.1103/PhysRevB.98.195138},
url = {https://juser.fz-juelich.de/record/857883},
}