6533b82ffe1ef96bd1295ab6
RESEARCH PRODUCT
DISORDERING MECHANISMS OF THE Cu(110) SURFACE
Hannu HäkkinenJussi TimonenJuha MerikoskiM. ManninenKimmo KaskiKimmo Kaskisubject
Work (thermodynamics)Materials scienceCondensed matter physicsAnharmonicitychemistry.chemical_elementStatistical and Nonlinear Physics02 engineering and technologyCrystal structure021001 nanoscience & nanotechnologyCondensed Matter Physics01 natural sciencesCopperCrystallographic defectPremeltingMolecular dynamicschemistry0103 physical sciencesMelting point010306 general physics0210 nano-technologydescription
We review recent theoretical work on the various disordering mechanisms of the Cu(110) surface. In these studies the properties of the surface, from the onset of enhanced anharmonicity in surface vibrations up to bulk melting point T M , have been studied using molecular dynamics and lattice-gas Monte Carlo methods with many-body interactions derived from the effective medium theory. Well after the onset of enhanced out-of-plane surface vibrations, clustering of surface defects is found to induce a roughening transition at T≈0.81T M , and surface premelting is found to occur at T≈0.97T M . These results suggest, that these transitions can both appear at Cu(110). The general picture of disordering as reported here for Cu(110), is expected to be valid also for other unreconstructed (110) surfaces of fcc metals.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1994-10-20 | International Journal of Modern Physics B |