Bulletin of the American Physical Society
APS March Meeting 2011
Volume 56, Number 1
Monday–Friday, March 21–25, 2011; Dallas, Texas
Abstract: K1.00281 : Structure, Vibrational Dynamics and Thermodynamics of silver thin-films on Cu(100)
Author:
We use a Real Space Green's function and the embedded atom method
for
interaction potentials,
to examine the structural and vibrational properties of a silver
thin-film
(from one to four monolayers) on Cu(100).
Due to the lattice mismatch, the first several layers of the
substrate had
major structural modification, in the form of buckling about 0.6A
for the
top two layers and 0.05A in the 6$^{th}$ layer. For the case of a
mono-layer, the vibrational
densities of state of the silver atoms extend substantially
beyond the
maximum of the bulk density. The atoms in the first copper
layer's density
of state also show substantial enhancement of the high frequency
end. These
reflect the strong bonding between the monolayer and the
substrate. The
vibrational thermodynamic functions for these interface atoms
will be
presented
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2011.MAR.K1.281
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