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@ARTICLE{Volokitin:53861,
author = {Volokitin, A. I. and Persson, B. N. J. and Ueba, H.},
title = {{E}nhancement of noncontact friction between closely spaced
bodies by two-dimensional systems},
journal = {Physical review / B},
volume = {73},
number = {16},
issn = {1098-0121},
address = {College Park, Md.},
publisher = {APS},
reportid = {PreJuSER-53861},
pages = {165423},
year = {2006},
note = {Record converted from VDB: 12.11.2012},
abstract = {We consider the effect of an external bias voltage and the
spatial variation of the surface potential on the damping of
cantilever vibrations. The electrostatic friction is due to
energy losses in the sample created by the electromagnetic
field from the oscillating charges induced on the surface of
the tip by the bias voltage and spatial variation of the
surface potential. A similar effect arises when the tip is
oscillating in the electrostatic field created by charged
defects in a dielectric substrate. The electrostatic
friction is compared with the van der Waals friction
originating from the fluctuating electromagnetic field due
to quantum and thermal fluctuation of the current density
inside the bodies. We show that the electrostatic and van
der Waals friction can be greatly enhanced if on the
surfaces of the sample and the tip there are two-dimensional
(2D) systems, e.g., a 2D electron system or incommensurate
layers of adsorbed ions exhibiting acoustic vibrations. We
show that the damping of the cantilever vibrations due to
the electrostatic friction may be of similar magnitude as
the damping observed in recent experiments by Stipe [Phys.
Rev. Lett. 87, 096801 (2001)]. We also show that at short
separation the van der Waals friction may be large enough to
be measured experimentally.},
keywords = {J (WoSType)},
cin = {IFF-TH-I},
ddc = {530},
cid = {I:(DE-Juel1)VDB30},
pnm = {Kondensierte Materie},
pid = {G:(DE-Juel1)FUEK414},
shelfmark = {Physics, Condensed Matter},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000237155800106},
doi = {10.1103/PhysRevB.73.165423},
url = {https://juser.fz-juelich.de/record/53861},
}