Issue |
Europhys. Lett.
Volume 46, Number 6, June II 1999
|
|
---|---|---|
Page(s) | 755 - 761 | |
Section | Condensed matter: structure, mechanical and thermal properties | |
DOI | https://doi.org/10.1209/epl/i1999-00329-2 | |
Published online | 01 September 2002 |
Subsurface ordering kinetics at
1
Fakultät für Physik,
Universität Konstanz - D-78457 Konstanz, Germany
2
Institute of Experimental Physics,
Warsaw University - PL-00681 Warszawa, Poland
Received:
15
March
1999
Accepted:
10
April
1999
The peculiar two-step ordering kinetics, discovered recently in time-resolved X-ray experiments on the Cu3Au(001) surface after a temperature quench to the ordered phase is analyzed within the time-dependent Ginzburg-Landau theory. Our model accounts for both the fast propagation of an ordering wave into the bulk, initiated by Au-surface segregation, and a time-delayed propagation of lateral order from the bulk to the surface. We also discuss further effects predicted by our theory, like the appearance of a characteristic penetration depth of the ordering wave and a secondary relaxation in its amplitude, which have not yet been detected experimentally.
PACS: 64.75.+g – Solubility, segregation, and mixing; phase separation / 05.70.Ln – Nonequilibrium and irreversible thermodynamics / 68.35.-p – Solid surfaces and solid-solid interfaces
© EDP Sciences, 1999
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.