Issue |
Europhys. Lett.
Volume 41, Number 4, february II 1998
|
|
---|---|---|
Page(s) | 395 - 400 | |
Section | Condensed matter: structure, thermal and mechanical properties | |
DOI | https://doi.org/10.1209/epl/i1998-00163-6 | |
Published online | 01 September 2002 |
Dynamical scaling in close-to-equilibrium adsorption
1
Department of Physics, Texas A&M University,
College Station, TX 77843-4242, USA
2
Institut für Festkörperphysik, Universität Hannover,
Appelstraße 2, D-30167, Hannover, Germany
3
Institut für Theoretische Physik, Universität Hannover,
Appelstraße 2, D-30167, Hannover, Germany
Received:
22
August
1997
Accepted:
6
January
1998
Scaling of the
hysteresis loop in a
close-to-equilibrium
adsorption-desorption (CEAD) process is explored.
We consider
the response of the CEAD
process
to a chemical potential
which varies harmonically with time,
.
corresponds to the coverage
at equilibrium.
The cycle time τ
is assumed to be sufficiently large so that
the system is in thermal equilibrium at
all times.
The area
of the adsorption-desorption cycle loop
scales as
.
We show that for
growth-controlled hysteresis (GCH), i.e. in
the limit of a small nucleation time
,
and
for GCH,
and confirm this prediction by
numerical simulation of a simple model.
Possible experimental checks of these
predictions are discussed.
PACS: 68.45.Da – Adsorption and desorption kinetics; evaporation and condensation / 68.10.Jy – Kinetics (evaporation, adsorption, condensation, catalysis, etc.) / 68.35.Rh – Phase transitions and critical phenomena
© EDP Sciences, 1998
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