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@ARTICLE{Ueba:12968,
author = {Ueba, H. and Ootsuka, Y. and Paulsson, M. and Persson, B.
N. J.},
title = {{L}ateral hopping of {CO} on {C}u(111) induced by
femtosecond laser pulses},
journal = {Physical review / B},
volume = {82},
number = {12},
issn = {1098-0121},
address = {College Park, Md.},
publisher = {APS},
reportid = {PreJuSER-12968},
pages = {121411},
year = {2010},
note = {We thank K. Morgenstern for the experimental results prior
to publication and discussions. We also thank M. Mehlhorn
and H. Gawronski for their helps in the numerical
calculations of T<INF>el</INF> and T<INF>ph</INF> for Cu.
H.U. was supported by the Grant-in-Aid for Scientific
Research B (No. 18340085) from the Japan Society for the
Promotion of Science (JSPS). B.N.J.P. was supported by
Invitation Program for Research in Japan from JSPS.},
abstract = {We present a theoretical study of the lateral hopping of a
single CO molecule on Cu (111) induced by femtosecond laser
pulses by Mehlhorn et al. [Phys. Rev. Lett. 104, 076101
(2010)]. Our model assumes an intermode coupling between the
CO frustrated translation (FT) and frustrated rotation (FR)
modes with a weak and strong electronic friction coupling to
hot electrons, respectively, and heat transfer between the
FT mode and the substrate phonons. In this model the
effective electronic friction coupling of the FT mode
depends on the absorbed laser fluence F through the
temperature of the FR mode. The calculated hopping yield as
a function of F nicely reproduces the nonlinear increase
observed above F=4.0 J/m(2). It is found that the electronic
heating via friction coupling nor the phonon coupling alone
cannot explain the experimental result. Both heatings are
cooperatively responsible for CO hopping on Cu (111). The
electronic heat transfer dominates over the phononic one at
high F, where the effective electronic friction coupling
becomes larger than the phononic coupling.},
keywords = {J (WoSType)},
cin = {IFF-1},
ddc = {530},
cid = {I:(DE-Juel1)VDB781},
pnm = {Grundlagen für zukünftige Informationstechnologien},
pid = {G:(DE-Juel1)FUEK412},
shelfmark = {Physics, Condensed Matter},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000282008500002},
doi = {10.1103/PhysRevB.82.121411},
url = {https://juser.fz-juelich.de/record/12968},
}