Details
| Original language | English |
|---|---|
| Article number | 113401 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 82 |
| Issue number | 11 |
| Publication status | Published - 2 Sept 2010 |
Abstract
Ammonia adsorbed on a Pt(443) surface causes meandering of the initially straight edges at 300 K. Based on density-functional theory calculations and on kinetic Monte Carlo simulations it is shown that the meandering is not an equilibrium structure stabilized by the larger adsorption energy of ammonia at step and kink sites. Rather the meandering has to be interpreted as a frozen thermal fluctuation caused by ammonia which strongly reduces the stiffness of the step edges at intermediate ammonia coverages.
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Condensed Matter Physics
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In: Physical Review B - Condensed Matter and Materials Physics, Vol. 82, No. 11, 113401, 02.09.2010.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Frozen thermal fluctuations in adsorbate-induced step restructuring
AU - Zhang, X. Q.
AU - Offermans, W. K.
AU - Van Santen, R. A.
AU - Jansen, A. P.J.
AU - Scheibe, A.
AU - Lins, U.
AU - Imbihl, R.
PY - 2010/9/2
Y1 - 2010/9/2
N2 - Ammonia adsorbed on a Pt(443) surface causes meandering of the initially straight edges at 300 K. Based on density-functional theory calculations and on kinetic Monte Carlo simulations it is shown that the meandering is not an equilibrium structure stabilized by the larger adsorption energy of ammonia at step and kink sites. Rather the meandering has to be interpreted as a frozen thermal fluctuation caused by ammonia which strongly reduces the stiffness of the step edges at intermediate ammonia coverages.
AB - Ammonia adsorbed on a Pt(443) surface causes meandering of the initially straight edges at 300 K. Based on density-functional theory calculations and on kinetic Monte Carlo simulations it is shown that the meandering is not an equilibrium structure stabilized by the larger adsorption energy of ammonia at step and kink sites. Rather the meandering has to be interpreted as a frozen thermal fluctuation caused by ammonia which strongly reduces the stiffness of the step edges at intermediate ammonia coverages.
UR - http://www.scopus.com/inward/record.url?scp=77957557396&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.82.113401
DO - 10.1103/PhysRevB.82.113401
M3 - Article
AN - SCOPUS:77957557396
VL - 82
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
SN - 1098-0121
IS - 11
M1 - 113401
ER -