| dc.creator |
Blanco-Rey, María |
|
| dc.creator |
Heinz, Klaus |
|
| dc.creator |
Andres, P. L. de |
|
| dc.date |
2008-01-29T13:52:17Z |
|
| dc.date |
2008-01-29T13:52:17Z |
|
| dc.date |
2008-01-29T13:52:17Z |
|
| dc.date.accessioned |
2017-01-31T00:59:50Z |
|
| dc.date.available |
2017-01-31T00:59:50Z |
|
| dc.identifier |
http://hdl.handle.net/10261/2758 |
|
| dc.identifier.uri |
http://dspace.mediu.edu.my:8181/xmlui/handle/10261/2758 |
|
| dc.description |
The performance of a combinatorial simultaneous optimisation algorithm (SO)
is tested using experimental LEED I(E) data from Cu(100) and Fe$_{0.57}$Al$_{0.47}$(100) surfaces. SO optimises structures taking advantage of the experimental database at two
levels:
(i) conmensurate subsets of the database with the number of unknown parameters
are chosen to find local solutions using Broyden's method and,
(ii) these partial structural solutions are used to build a Markov chain over
the whole database.
This procedure is of global character, the same as simulated annealing or
genetic algorithms methods, but
displays a very competitive scaling law
because after the first iteration candidates are not chosen by a blind/random pick; they are already solutions to the problem with a restricted experimental database. |
|
| dc.description |
Financed by CYCIT (MAT-2005-3866) and MEC (CONSOLIDER NANOSELEC-26400) |
|
| dc.format |
249808 bytes |
|
| dc.format |
application/pdf |
|
| dc.language |
eng |
|
| dc.rights |
openAccess |
|
| dc.subject |
Low-Energy Electron Diffraction |
|
| dc.title |
Quantitative LEED analysis using a simultaneous optimisation algorithm |
|
| dc.type |
Artículo |
|