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@ARTICLE{Gaudenzi:836896,
author = {Gaudenzi, R. and Misiorny, M. and Burzurí, E. and
Wegewijs, M. R. and van der Zant, H. S. J.},
title = {{T}ransport mirages in single-molecule devices},
journal = {The journal of chemical physics},
volume = {146},
number = {9},
issn = {1089-7690},
address = {Melville, NY},
publisher = {American Institute of Physics},
reportid = {FZJ-2017-05928},
pages = {092330 -},
year = {2017},
abstract = {Molecular systems can exhibit a complex, chemically
tailorable inner structure which allows for targeting of
specific mechanical, electronic, and optical properties. At
the single-molecule level, two major complementary ways to
explore these properties are molecular quantum-dot
structures and scanning probes. This article outlines
comprehensive principles of electron-transport spectroscopy
relevant to both these approaches and presents a new,
high-resolution experiment on a high-spin single-molecule
junction exemplifying these principles. Such spectroscopy
plays a key role in further advancing our understanding of
molecular and atomic systems, in particular, the relaxation
of their spin. In this joint experimental and theoretical
analysis, particular focus is put on the crossover between
the resonant regime [single-electron tunneling] and the
off-resonant regime [inelastic electron (co)tunneling
spectroscopy (IETS)]. We show that the interplay of these
two processes leads to unexpected mirages of resonances not
captured by either of the two pictures alone. Although this
turns out to be important in a large fraction of the
possible regimes of level positions and bias voltages, it
has been given little attention in molecular transport
studies. Combined with nonequilibrium IETS—four-electron
pump-probe excitations—these mirages provide crucial
information on the relaxation of spin excitations. Our
encompassing physical picture is supported by a
master-equation approach that goes beyond weak coupling. The
present work encourages the development of a broader
connection between the fields of molecular quantum-dot and
scanning probe spectroscopy},
cin = {PGI-2 / JARA-FIT},
ddc = {540},
cid = {I:(DE-Juel1)PGI-2-20110106 / $I:(DE-82)080009_20140620$},
pnm = {141 - Controlling Electron Charge-Based Phenomena
(POF3-141)},
pid = {G:(DE-HGF)POF3-141},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000397312800032},
doi = {10.1063/1.4975767},
url = {https://juser.fz-juelich.de/record/836896},
}